hi,i just got a dell gx280 p4 2.8 ht with 512 ram and nvidia 512mb pci express card. i had the same card on my last system and the graphics were better than this. is the lag and choppy graphics because i only have 512 ram? i hope thats the problem or im gonna sell this dell and just save for a better gaming pc. any hints on how to get it to play good on bf2?