Tygur,

before i had: 128, 64, 64 = 256
and replaced it with: 128, 256, 256 = 640

and i will check that as soon as i get home, but i i bought the memory from crucial.com and i did specify the type of MB i got and stuff so i dont know if this is it...

now, did you think about that scenario i mentioned? the one about mapping to other comp's drive and clicking, i can't understard how is that possible. comp was just working fine with the swapped HD and just as i mapped and clicked it wend down....

is it possible that it got infected through mapping?

i wish somebody would expained it to me......