My specs P4 1.7ghz 1GB SDRAM 80GB Western Digital HDD GeeForce 5700FX 128mb unknown motherboard and PSU So I bought 512 of RAM so I could have 1GB in totall and did format. After the format my comp is running not very well, like slower. Whenever I run Counter Strike 1.6 which doesn't need much it lags a lot, I get a lot of ghosting and lag. So I looked on the forums here and from sticky I downloaded the program MemTest. I run it and I can't even test my whole RAM because a Message pops out: Your version of Windows limits the ammount of contiguous Ram a single program can allocate. You will have to run two copies of MemTest, and tell each to test 200mb of Ram. Do any of u know what that means ? From what i figured out is that each program has a limit to using 200mb of Ram. Isn't that weird ? Maybe that's why I don't Bother to play Battlefield 2 on my machine cuz whenever i put it on it lags like crazy and i just turn it off and don't bother trying again for a long time. Any help on this ?