Comment 1 for bug 79578

Since I installed grub from Dapper no more problems appeared.

BTW
I never had any problems like this with hoary, breezy or dapper on this machine.

Some additional info:

Mainboard/BIOS:
ASUSTeK Computer INC.
MED 2001
REV 1.xx
Award Modular BIOS v6.0
ASUS MED 2001 ACPI BIOS Revision 1009
06/12/2001-VT694X-MED 2001

$fdisk -l
Disk /dev/hda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot Start End Blocks Id System
/dev/hda1 * 1 192 1542208+ b W95 FAT32
/dev/hda2 193 714 4192965 b W95 FAT32
/dev/hda3 715 975 2096482+ b W95 FAT32
/dev/hda4 976 9729 70316505 f W95 Ext'd (LBA)
/dev/hda5 976 1913 7534422 83 Linux
/dev/hda6 1914 2015 819283+ 82 Linux swap / Solaris
/dev/hda7 2016 3008 7976209+ 83 Linux
/dev/hda8 3009 8575 44716896 83 Linux
/dev/hda9 8576 9729 9269473+ c W95 FAT32 (LBA)

$sudo cat /proc/ide/ide0/hda/geometry
physical 16383/16/63
logical 65535/16/63
$sudo cat /proc/ide/ide0/hda/capacity
156301488
$sudo cat /proc/ide/ide0/hda/model
WDC WD800JB-00JJA0