Comment 3 for bug 371191

I have observed the same problem with my Lenovo T61 laptop. After the upgrade it started to loose files and behave strange (I guess the strange behavior is a result of corrupted files.) After the failed upgrade, I tried reinstall 9.04, this time using ext4. But soon after, it started corrupting files and even the boot loader. I have scanned memory for errors and changed the hard disk to a brand new one. The IT-support department has installed Windows on it to run their usual set of diagnostic tools without finding any problems.

After I got it back from IT support I upgraded the BIOS to the latest version and tried to reinstall 9.04. Same problem. Now I'm back on 8.10 and for the last 6 hours it seems to be running fine. So I'm quite convinced this is a 9.04 related problem and not hardware.