Hello! Long-time site visitor, first-time poster! :lol: Anyway, ive just bought a new bunch of upgrade parts, and built my system: AMD64 3500+ Winchester 939 pin with Thermalright XP-120 HSF Asus A8N PCI-E mobo (not deluxe) Bios 1.1001 1024Mb DDR400 RAM (not dual channel) Connect3D Radeon X850XT w/ 5.2 Cats SBLive! Audigy Soundcard DiamondMax 160Gb 7200RPM 8Mb SATA HDD LG DVD Drive Antec 480W Neopower ATX 2.0 PSU Specifically, the mobo, CPU and GFX are new, everything else is up to a year old with no previous problems. Clean install XP SP2 after reformat. The problem: The performance is great when I'm in a game but the graphics are causing me no end of problems. Whenever I play a newly installed game for the first time, the screen will just remain black and often hangs the whole system. Either this or the normal picture will appear, but will be split into rows of alternating lines about 3mm high, each line offset against the other. The screen now takes ages to change display modes (i.e. the monitor clicking when it changes form 2D to 3D) and no game works with vsync at all. All the system drivers are the most up to date I can find, but if anyone can give me a source for nforce4 chipset drivers more recent than those on the Asus webby I'd be grateful. Please, for my sanity, any ideas?