Seems to be a general problem! My now fresh installed Karmic got the same problem...
Linux lucid 2.6.31-20-generic #58-Ubuntu SMP Fri Mar 12 04:38:19 UTC 2010 x86_64 GNU/Linux grub-common 1.97~beta4-1ubuntu4.1 memtest86+ 2.11-3ubuntu5
Seems to be a general problem!
My now fresh installed Karmic got the same problem...
Linux lucid 2.6.31-20-generic #58-Ubuntu SMP Fri Mar 12 04:38:19 UTC 2010 x86_64 GNU/Linux 1ubuntu4. 1
grub-common 1.97~beta4-
memtest86+ 2.11-3ubuntu5