These problems seem to happen only on Direct3D based applications and do not affect OpenGL.

Problems that have been known to arise are freezing, artifacts, reboots, and other issues that make gaming and use of 3D applications almost impossible. In addition, motherboards with some VIA and SIS chipsets and an AMD Athlon XP processor seemingly have compatibility problems with the GeForce 66 GPUs. PureVideo functionality varies by model, with some models lacking WMV9 and/or H.264 acceleration. Shader Model 3.0 was quickly adopted by game developers because it was quite simple to convert existing shaders coded with SM 2.0/2.0A/2.0B to version 3.0, and it offered noticeable performance improvements across the entire GeForce 6 line. SM3 extends SM2 in a number of ways: standard FP32 (32-bit floating-point) precision, dynamic branching, increased efficiency and longer shader lengths are the main additions. Nvidia was the first to deliver Shader Model 3.0 (SM3) capability in its GPUs. Nvidia PureVideo technology is the combination of a dedicated video processing core and software which decodes H.264, VC-1, WMV, and MPEG-2 videos with reduced CPU utilization. 8 IntelliSample 4.0 and the GeForce 6 GPUs.7.2 GeForce 61XX abnormally high failure rate in notebook computers.7.1 GeForce 61 series chip specifications.6.1.4 GeForce 6200 PCI (NV44) without TurboCache.6.1.3 GeForce 6200 AGP (NV44a2) without TurboCache.6.1.2 GeForce 6200 AGP (NV44a) without TurboCache.6.1.1 GeForce 6200 PCI-Express (NV44) TurboCache.6.1 GeForce 6200 TurboCache / AGP chip specifications.

Nvidia quadro fx p260 driver