Long story short. Built the system in January 2009. Ran like a dream. Around November/December 2009, started having issues with the video card (or what seemed to be the video card) crashing intermittently (freezing, kaleidoscope-like on the screen after a few seconds). It would happen seemingly at random (sometimes once a week, other times once every 10 minutes). It would happen with nearly every game possible. SO two years after building the system, I decide to finally replace the video card (assuming that was the issue as I know it's dying because it's fan grinds like mad now). Works like a charm.. until I try to play Starcraft II. Starcraft II begins to play fine (generally for about 5-30 minutes), then freezes for 20-30 seconds and crashes the drivers or just stays frozen altogether (both times requiring a hard reboot). If I try to play it in Windowed Mode, it'll do the same thing except instead of crashing the drivers, it pulls the kaleidoscope stunt that my old card did, but only for the actual game window (not my full monitor), freezing my screen completely. This isn't a once in awhile issue, it's a guaranteed 'if i try to play Starcraft II for any medium to extended period of time (even an hour) it will crash the drivers/card' The same issue has happened 3-4 times playing Heroes of Newerth (drivers crashing) and only one time while playing Black Ops (ever, and I can play it for 6-8 hours straight and not have issues) FULL RIG: PSU: RaidMax 630w modular CPU: Intel Core2 Duo 3.0ghz (Dual Core) RAM: 2x 1gb Dual Channel Corsair DDR2 OS: Windows XP 32-bit (SP3), OEM install MOBO: MSI P7N Platinum SLI 750i motherboard GFX: MSI nVidia GTX 460 1GB (Old card: nVidia 9800 GT 512mb) PC is sufficiently cooled, as well as the graphics card. I use hardware monitors and fan monitors to watch the temperatures and the temperature is never above 60º Celsius when it crashes (and the card can safely break 80º-90º [getting too hot around here] as per the hardware specs given by MSI for safety). The graphics card also has two power connectors (instead of the usual one) also, but my PSU has a modular connector for a second rail connector for the card. From what I've conferred with colleagues, it's likely to be: Faulty RAM Faulty MOBO Faulty Card (very unlikely as it's the same issue that plagued my previous card) Faulty Drivers (tested over a dozen different drivers, using both the 'clean install' feature of the drivers as well as Driver Sweeper in between EVERY install to test) When I contacted the MSI tech department they told to me start swapping parts in and out (which I had tested with the previous card as well as new harddrive and windows install), and when I told them what I had previously tried he seemed to jump to the conclusion that it must magically be my OEM copy of Windows XP causing the problems and I should get a retail copy of Windows and install it.. Their solution was to get me to buy a new, $80-100 retail copy of an operating system that I CANNOT RETURN to nearly ANY (if not ALL) software vendors to see if it fixes the issue.. giving me no alternative. Both minidumps that I have reference: "Probably caused by : nv4_mini.sys ( nv4_mini+1d410 )" Any event log cites the cause as ' nv ' or nVidia, it's description being: "Unknown error on CMDre 00000000 00000080 00000040 00000004 00000084" In the event viewer, most of the crashes are 2-5 logs long however there are a few crashes where the log posts the same event (date and timestamp are the exact same) 12, 14, and 15 times on three occassions, 64 times on one occassion, and 75 times (yes, 75 event logs of the same event all at once) on another occassion. If anyone has any insight, or needs any extra info that would be great.