after running wallpaper-tray -v here is what I had after a while

*** glibc detected *** wallpaper-tray: free(): invalid next size (normal): 0x081f5be0 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6[0xb72e07cd]
/lib/tls/i686/cmov/libc.so.6(cfree+0x90)[0xb72e3e30]
wallpaper-tray(f_set_rand_wallpaper+0x25a)[0x804ee3a]
/usr/lib/libglib-2.0.so.0[0xb73e83c6]
/usr/lib/libglib-2.0.so.0(g_main_context_dispatch+0x182)[0xb73e7df2]
/usr/lib/libglib-2.0.so.0[0xb73eadcf]
/usr/lib/libglib-2.0.so.0(g_main_loop_run+0x1a9)[0xb73eb179]
/usr/lib/libgtk-x11-2.0.so.0(gtk_main+0xb4)[0xb7a78044]
wallpaper-tray(main+0x344)[0x804d344]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc)[0xb728eebc]
wallpaper-tray[0x804bb81]
======= Memory map: ========
08048000-08050000 r-xp 00000000 08:01 933910     /usr/bin/wallpaper-tray
08050000-08051000 rw-p 00007000 08:01 933910     /usr/bin/wallpaper-tray
08051000-08235000 rw-p 08051000 00:00 0          [heap]
b5f00000-b5f21000 rw-p b5f00000 00:00 0 
b5f21000-b6000000 ---p b5f21000 00:00 0 
b6015000-b6020000 r-xp 00000000 08:01 4014314    /lib/libgcc_s.so.1
b6020000-b6021000 rw-p 0000a000 08:01 4014314    /lib/libgcc_s.so.1
b6033000-b6036000 r-xp 00000000 08:01 4997145    /usr/lib/libglade/2.0/libbonobo.so
b6036000-b6037000 rw-p 00002000 08:01 4997145    /usr/lib/libglade/2.0/libbonobo.so
b6037000-b603e000 r-xp 00000000 08:01 4997323    /usr/lib/libglade/2.0/libgnome.so
b603e000-b603f000 rw-p 00006000 08:01 4997323    /usr/lib/libglade/2.0/libgnome.so
b603f000-b609f000 rw-s 00000000 00:08 217710609  /SYSV00000000 (deleted)
b609f000-b60c6000 r--p 00000000 08:01 67136      /usr/share/fonts/truetype/Liberation/LiberationSerif-Regular.ttf
b60c6000-b60c8000 r-xp 00000000 08:01 299473     /usr/lib/pango/1.6.0/modules/pango-basic-fc.so
b60c8000-b60c9000 rw-p 00001000 08:01 299473     /usr/lib/pango/1.6.0/modules/pango-basic-fc.so
b60c9000-b60cf000 r--s 00000000 08:01 297827     /var/cache/fontconfig/945677eb7aeaf62f1d50efc3fb3ec7d8-x86.cache-2
b60cf000-b60d0000 r--s 00000000 08:01 297825     /var/cache/fontconfig/fd9505950c048a77dc4b710eb6a628ed-x86.cache-2
b60d0000-b60d3000 r--s 00000000 08:01 297824     /var/cache/fontconfig/ddc79d3ea06a7c6ffa86ede85f3bb5df-x86.cache-2
b60d3000-b60d4000 r--s 00000000 08:01 297823     /var/cache/fontconfig/e7071f4a29fa870f4323321c154eba04-x86.cache-2
b60d4000-b60d5000 r--s 00000000 08:01 294972     /var/cache/fontconfig/a2ab74764b07279e7c36ddb1d302cf26-x86.cache-2
b60d5000-b60d9000 r--s 00000000 08:01 297822     /var/cache/fontconfig/921a30a17f0be15c70ac14043cb7a739-x86.cache-2
b60d9000-b60da000 r--s 00000000 08:01 297820     /var/cache/fontconfig/4c73fe0c47614734b17d736dbde7580a-x86.cache-2
b60da000-b60dc000 r--s 00000000 08:01 297819     /var/cache/fontconfig/646addb8444faa74ee138aa00ab0b6a0-x86.cache-2
b60dc000-b60de000 r--s 00000000 08:01 297818     /var/cache/fontconfig/20bd79ad97094406f7d1b9654bfbd926-x86.cache-2
b60de000-b60df000 r--s 00000000 08:01 297817     /var/cache/fontconfig/75a2cd575a62c63e802c11411fb87c37-x86.cache-2
b60df000-b60e1000 r--s 00000000 08:01 297816     /var/cache/fontconfig/9c0624108b9a2ae8552f664125be8356-x86.cache-2
b60e1000-b60e7000 r--s 00000000 08:01 297815     /var/cache/fontconfig/6d41288fd70b0be22e8c3a91e032eec0-x86.cache-2
b60e7000-b60e9000 r--s 00000000 08:01 297814     /var/cache/fontconfig/de156ccd2eddbdc19d37a45b8b2aac9c-x86.cache-2
b60e9000-b60eb000 r--s 00000000 08:01 297813     /var/cache/fontconfig/da1bd5ca8443ffe22927a23ce431d198-x86.cache-2
b60eb000-b60f3000 r--s 00000000 08:01 297812     /var/cache/fontconfig/e3de0de479f42330eadf588a55fb5bf4-x86.cache-2
b60f3000-b60f9000 r--s 00000000 08:01 297811     /var/cache/fontconfig/0f34bcd4b6ee430af32735b75db7f02b-x86.cache-2
b60f9000-b60fa000 r--s 00000000 08:01 297810     /var/cache/fontconfig/4794a0821666d79190d59a36cb4f44b5-x86.cache-2
b60fa000-b60fc000 r--s 00000000 08:01 297809     /var/cache/fontconfig/de9486f0b47a4d768a594cb4198cb1c6-x86.cache-2
b60fc000-b6102000 r--s 00000000 08:01 297808     /var/cache/fontconfig/d52a8644073d54c13679302ca1180695-x86.cache-2
b6102000-b6105000 r--s Aborted (core dumped)