I have bought a pc from shinobee on amazon and it worked fine for a few months and now it has started crashing and refusing to boot. They told me to try it with only one 2gb RAM card, which works, but i want 4gb of RAM. I bought a new RAM card from crucial and it just won't accept two cards. anybody know why this may be happening? (also, i get a message saying that the motherboard does not support the cpu, however shinobee tells me that that does not matter ??)