Install problem, pages of 10 10 10 10 10

Installed 3.6 and all seemed to go well but when I now start the computer all I get is a POST screen showing rows and rows of 10 10 10 10 10 10

Any idea why this is happening.

3.6 runs fine on the computer if booted from CD.

Thanks

Could be a bad boot sector. From KNOPPIX CD as root try:

dd if=/dev/zero of=/dev/hda bs=512 count=1

This will erase your partition table and boot sector completely. Reinstall KNOPPIX.

/dev/hda : No such device or address

this is what I get after putting that into the Root console

What type of hard disk does it have? Is it SCSI? If so try
dd if=/dev/zero of=/dev/sda bs=512 count=1

From knoppix CD, what does
cfdisk
as root report.

or

Boot to knoppix, get to this posting and post the output of
dmesg
here. That should tell us a bunch.

cant get to this post through Knoppix as it's on a computer in another room with not Internet. I will try and write down what it says but I think it has trashed the HDD. I tried looking at it on this box with a firewire bay but nothing seems to be able to sort it. Ive tried the partition software on the Knoppix CD but it says it can't delete the partitions on the drive as there is an error.