First of all this is the first time i have used this website and this is my last resort before i waste money with new hardware, I made it worth 500 points cause this is very urgent. I get this error after about 10 minuites of play time for only Counter-strike Source. This is the most cpu/memory demanding game i have and is the only game which crashes for me. The error is as follows: Instruction at 0x241f27b5 referenced memory at 0x00c38348, memory cannot be "read". Sometimes it goes longer without crashing , but most of the time about 10 mins or so into gameplay. I have an MSI k7N2GM-L Mainboard, AMD 2400xp, 512MB pc2700, 350watt powersupply, ati 9800 pro, running windows XP professional SP2. Im thi8nking maybe not enough ram, or maybe poor quality ram chips? They are pretty cheap...Im wondering if buying pc3200 OCZ high performance ram chips will have any affect on this problem. Thanks for your time.