Basically have just done a new build pc with all parts from ocuk. I went with some G-skill ram 3200 hz kit I think was the exact name. 2gig dual channel blah blah. Anyhow on another post I mentioned how I couldnt get the pc working without an ntfs.sys error, but i had a hunch and took out one of the chips and it all installed windows xp fine. Runs fine and the world was a happy place on only 1gig. Now I obviously want to boost the performance sticking the other chip in, but whenever I do windows hangs, reboots randomly, freezes up etc. I take it I can easily assume this ram is causing the problem? Also would anyone know if I have to send both parts of the dual channel kit back or just 1gig of it, as I would ideally like to keep using the pc! Do I rma through OCUK or direct also? Many thanks!