Same issue here on two different systems:
1) Ubuntu 10.10 (Maverick): $ uname -a Linux [...] 2.6.35-22-generic #35-Ubuntu SMP Sat Oct 16 20:45:36 UTC 2010 x86_64 GNU/Linux
2) Ubuntu 10.04.1 LTS (Lucid): $ uname -a Linux [...] 2.6.32-25-generic #45-Ubuntu SMP Sat Oct 16 19:48:22 UTC 2010 i686 GNU/Linux
Another one with Ubuntu 10.10 (i686) works flawlessly.
Same issue here on two different systems:
1) Ubuntu 10.10 (Maverick):
$ uname -a
Linux [...] 2.6.35-22-generic #35-Ubuntu SMP Sat Oct 16 20:45:36 UTC 2010 x86_64 GNU/Linux
2) Ubuntu 10.04.1 LTS (Lucid):
$ uname -a
Linux [...] 2.6.32-25-generic #45-Ubuntu SMP Sat Oct 16 19:48:22 UTC 2010 i686 GNU/Linux
Another one with Ubuntu 10.10 (i686) works flawlessly.