I'm using a V5535 which has been randomly crashing. I've tried Windows 7, XP and Vista, all the same. I have replaced hard drives and memory. Seems to be a graphics issue - for example when I do get it running and try to install SiS graphics driver, then it crashes if it hasn't already. I booted into the Diagnostics CD, and it ran a few times but crashed when it got to the memory test. Now it starts to boot into the CD and the screen gets garbled after the Fujitsu DOS splash screen, so I can't get a code from it. Any ideas? My Amilo L1300 was just as glitchy until I used some decent thermal paste, but I've tried that on this one to no avail. Any ideas? Thanks in advance!