When I run a scan with the free version of AVG my computer completely freezes and will not recover until I press reset, this also happens during the online scan. It always happens while it is scanning the memory, but it shows a different running process on each freeze. I thought it was maybe a memory fault but i get no errors from memtest or prime95, the memory is not overclocked. I am running xp pro on a raid0 setup. I have tried shutting down all unnecessary processes before scanning to no effect. This problem has persisted through a complete reformat of windows, I have run every hardware test I can think of and can find no problems there. There are no problems with any other programs. I would like to get this sorted as ewido/avg is one of my favourite security apps. I also run Kaspersky internet security with AVG in the Trusted Zone. Any advice would be greatly appreciated, many thanks.