Ran into (seemingly) the same problem when running NeverWinter Nights here:
$ /usr/local/games/nwn/nwnlaunch.sh 
*** PULSEAUDIO: Unable to connect: Connection refused
*** glibc detected *** ./nwmain: corrupted double-linked list: 0x0e0a8090 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6[0xb7bc2149]
/lib/tls/i686/cmov/libc.so.6[0xb7bc388e]
/lib/tls/i686/cmov/libc.so.6(cfree+0x90)[0xb7bc74f0]
/usr/lib/libGLcore.so.1[0xb752e720]
/lib/tls/i686/cmov/libc.so.6(exit+0xd4)[0xb7b86084]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe8)[0xb7b6e458]
./nwmain(AIL_WAV_info+0x39)[0x804f851]
======= Memory map: ========
08048000-08623000 r-xp 00000000 08:01 14647314   /usr/local/games/nwn/nwmain
08623000-087a1000 rwxp 005db000 08:01 14647314   /usr/local/games/nwn/nwmain
087a1000-0ebf0000 rwxp 087a1000 00:00 0          [heap]
b5020000-b5220000 rwxs 2e424000 00:0e 14843      /dev/nvidia0
b53f1000-b53f3000 rwxp b53f1000 00:00 0 
b5680000-b56a2000 rwxs 00000000 00:09 0          /SYSV00000000 (deleted)
b56a3000-b56a4000 ---p b56a3000 00:00 0 
b56a4000-b5ea4000 rwxp b56a4000 00:00 0 
b5ea4000-b5eab000 r-xp 00000000 08:01 56590356   /lib/tls/i686/cmov/librt-2.7.so
b5eab000-b5ead000 rwxp 00006000 08:01 56590356   /lib/tls/i686/cmov/librt-2.7.so
b5f1b000-b5f1c000 rwxs fdc08000 00:0e 14843      /dev/nvidia0
b6200000-b6221000 rwxp b6200000 00:00 0 
b6221000-b6300000 ---p b6221000 00:00 0 
b632e000-b6332000 r-xp 00000000 08:01 49841129   /usr/lib/libXfixes.so.3.1.0
b6332000-b6333000 rwxp 00003000 08:01 49841129   /usr/lib/libXfixes.so.3.1.0
b6333000-b633b000 r-xp 00000000 08:01 49841254   /usr/lib/libXcursor.so.1.0.2
b633b000-b633c000 rwxp 00007000 08:01 49841254   /usr/lib/libXcursor.so.1.0.2
b634e000-b634f000 rwxs fd001000 00:0e 14843      /dev/nvidia0
b6350000-b6351000 rwxs 3459f000 00:0e 14843      /dev/nvidia0
b6351000-b6390000 r-xp 00000000 08:01 53575686   /usr/lib/locale/en_US.utf8/LC_CTYPE
b6390000-b6391000 r-xp 00000000 08:01 49906928   /usr/lib/locale/en_US.utf8/LC_NUMERIC
b6391000-b6392000 r-xp 00000000 08:01 49905837   /usr/lib/locale/en_US.utf8/LC_TIME
b6392000-b6473000 r-xp 00000000 08:01 53581288   /usr/lib/locale/en_US.utf8/LC_COLLATE
b6473000-b6474000 r-xp 00000000 08:01 49905839   /usr/lib/locale/en_US.utf8/LC_MONETARY
b6474000-b6475000 r-xp 00000000 08:01 49922087   /usr/lib/locale/en_US.utf8/LC_MESSAGES/SYS_LC_MESSAGES
b6475000-b6476000 r-xp 00000000 08:01 49906984   /usr/lib/locale/en_US.utf8/LC_PAPER
b6476000-b647d000 r-xs 00000000 08:01 49856817   /usr/lib/gconv/gconv-modules.cache
b647d000-b647e000 ---p b647d000 00:00 0 
b647e000-b6c7e000 rwxp b647e000 00:00 0 
b6ce2000-b6ce4000 rwxp b6ce2000 00:00 0 
b6ce4000-b6ce8000 r-xp 00000000 08:01 49840952   /usr/lib/libXdmcp.so.6.0.0
b6ce8000-b6ce9000 rwxp 00003000 08:01 49840952   /usr/lib/libXdmcp.so.6.0.0
b6ce9000-b6d00000 r-xp 00000000 08:01 49840711   /usr/lib/libxcb.so.1.0.0
b6d00000-b6d01000 rwxp 00016000 08:01 49840711   /usr/lib/libxcb.so.1.0.0
b6d01000-b6d02000 r-xp 00000000 08:01 49840718   /usr/lib/libxcb-xlib.so.0.0.0
b6d02000-b6d03000 rwxp 00000000 08:01 49840718   /usr/lib/libxcb-xlib.so.0.0.0
b6d03000-b6d05000 r-xp 00000000 08:01 49840151   /usr/lib/libXau.so.6.0.0
b6d05000-b6d06000 rwxp 00001000 08:01 49840151   /usr/lib/libXau.so.6.0.0
b6d06000-b6d07000 rwxp b6d06000 00:00 0 
b6d07000-b6d19000 r-xp 00000000 08:01 49843295   /usr/lib/libdirect-1.0.so.0.1.0
b6d19000-b6d1a000 rwxp 00012000 08:01 49843295   /usr/lib/libdirect-1.0.so.0.1.0
b6d1a000-b6d21000 r-xp 00000000 08:01 49843721   /usr/lib/libfusion-1.0.so.0.1.0
b6d21000-b6d22000 rwxp 00006000 08:01 49843721   /usr/lib/libfusion-1.0.so.0.1.0
b6d22000-b6d83000 r-xp 00000000 08:01 49843296   /usr/lib/libdirectfb-1.0.so.0.1.0
b6d83000-b6d85000 rwxp 00060000 08:01 49843296   /usr/lib/libdirectfb-1.0.so.0.1.0
b6d85000-b6e44000 r-xp 00000000 08:01 49842941   /usr/lib/libasound.so.2.0.0
b6e44000-b6e48000 rwxp 000be000 08:01 49842941   /usr/lib/libasound.so.2.0.0
b6e48000-b6e52000 r-xp 00000000 08:01 52936820   /lib/libgcc_s.so.1
b6e52000-b6e53000 rwxp 0000a000 08:01 52936820   /lib/libgcc_s.so.1
b6e53000-b6f3b000 r-xp 00000000 08:01 49840849   /usr/lib/libstdc++.so.6.0.9
b6f3b000-b6f3e000 r-xp 000e8000 08:01 49840849   /usr/lib/libstdc++.so.6.0.9
b6f3e000-b6f40000 rwxp 000eb000 08:01 49840849   /usr/lib/libstdc++.so.6.0.9
b6f40000-b6f47000 rwxp b6f40000 00:00 0 
b6f47000-b6f49000 r-xp 00000000 08:01 56590343   /lib/tls/i686/cmov/libdl-2.7.so
b6f49000-b6f4b000 rwxp 00001000 08:01 56590343   /lib/tls/i686/cmov/libdl-2.7.so
b6f4b000-b702f000 r-xp 00000000 08:01 49840895   /usr/lib/libX11.so.6.2.0
b702f000-b7032000 rwxp 000e4000 08:01 49840895   /usr/lib/libX11.so.6.2.0
b7032000-b703f000 r-xp 00000000 08:01 49841146   /usr/lib/libXext.so.6.4.0
b703f000-b7040000 rwxp 0000d000 08:01 49841146   /usr/lib/libXext.so.6.4.0
b7040000-b7041000 r-xp 00000000 08:01 49843092   /usr/lib/libnvidia-tls.so.169.12
b7041000-b7042000 rwxp 00000000 08:01 49843092   /usr/lib/libnvidia-tls.so.169.12
b7042000-b7b16000 r-xp 00000000 08:01 49843090   /usr/lib/libGLcore.so.169.12
b7b16000-b7b52000 rwxp 00ad3000 08:01 49843090   /usr/lib/libGLcore.so.169.12
b7b52000-b7b58000 rwxp b7b52000 00:00 0 
b7b58000-b7ca1000 r-xp 00000000 08:01 56590340   /lib/tls/i686/cmov/libc-2.7.so
b7ca1000-b7ca2000 r-xp 00149000 08:01 56590340   /lib/tls/i686/cmov/libc-2.7.so
b7ca2000-b7ca4000 rwxp 0014a000 08:01 56590340   /lib/tls/i686/cmov/libc-2.7.so
b7ca4000-b7ca7000 rwxp b7ca4000 00:00 0 
b7ca7000-b7d0c000 r-xp 00000000 08:01 49843727   /usr/lib/libSDL-1.2.so.0.11.1
b7d0c000-b7d0e000 rwxp 00065000 08:01 49843727   /usr/lib/libSDL-1.2.so.0.11.1
b7d0e000-b7d36000 rwxp b7d0e000 00:00 0 
b7d36000-b7d9b000 r-xp 00000000 08:01 51904558   /usr/local/games/nwn/miles/libmss.so.6.5.2
b7d9b000-b7da6000 rwxp 00064000 08:01 51904558   /usr/local/games/nwn/miles/libmss.so.6.5.2
b7da6000-b7daa000 rwxp b7da6000 00:00 0 
b7daa000-b7e2c000 r-xp 00000000 08:01 2605153    /usr/lib/libGLU.so.1.3.070002
b7e2c000-b7e2d000 rwxp 00081000 08:01 2605153    /usr/lib/libGLU.so.1.3.070002
b7e2d000-b7eb5000 r-xp 00000000 08:01 49843089   /usr/lib/libGL.so.169.12
b7eb5000-b7ed0000 rwxp 00087000 08:01 49843089   /usr/lib/libGL.so.169.12
b7ed0000-b7ed2000 rwxp b7ed0000 00:00 0 
b7ed2000-b7ee6000 r-xp 00000000 08:01 56590354   /lib/tls/i686/cmov/libpthread-2.7.so
b7ee6000-b7ee8000 rwxp 00013000 08:01 56590354   /lib/tls/i686/cmov/libpthread-2.7.so
b7ee8000-b7eea000 rwxp b7ee8000 00:00 0 
b7eea000-b7f0d000 r-xp 00000000 08:01 56590344   /lib/tls/i686/cmov/libm-2.7.so
b7f0d000-b7f0f000 rwxp 00023000 08:01 56590344   /lib/tls/i686/cmov/libm-2.7.so
b7f0f000-b7f10000 r-xp 00000000 08:01 49906982   /usr/lib/locale/en_US.utf8/LC_NAME
b7f10000-b7f11000 r-xp 00000000 08:01 49905843   /usr/lib/locale/en_US.utf8/LC_ADDRESS
b7f11000-b7f12000 r-xp 00000000 08:01 49905844   /usr/lib/locale/en_US.utf8/LC_TELEPHONE
b7f12000-b7f13000 r-xp 00000000 08:01 49905846   /usr/lib/locale/en_US.utf8/LC_MEASUREMENT
b7f13000-b7f14000 r-xp 00000000 08:01 49905848   /usr/lib/locale/en_US.utf8/LC_IDENTIFICATION
b7f1a000-b7f21000 r-xp 00000000 08:01 49840323   /usr/lib/libXrender.so.1.3.0
b7f21000-b7f22000 rwxp 00007000 08:01 49840323   /usr/lib/libXrender.so.1.3.0
b7f24000-b7f26000 rwxp b7f24000 00:00 0 
b7f26000-b7f27000 r-xp b7f26000 00:00 0          [vdso]
b7f27000-b7f41000 r-xp 00000000 08:01 52936741   /lib/ld-2.7.so
b7f41000-b7f43000 rwxp 00019000 08:01 52936741   /lib/ld-2.7.so
bfdef000-bfe04000 rw-p bffeb000 00:00 0          [stack]
Aborted

$ cat ~/.asoundrc
# [comments removed]
</home/[user name removed]/.asoundrc.asoundconf>

~/.asoundrc.asoundconf is attached.

Other programs (e.g., Doom 3, SMplayer and Rhythmbox) work fine, and in parallel.