Card:  NVIDIA Geforce 8400M GT with 256 MB Memory

Operating System:  Vista Home Premium 32 Bit

Studio Version:  Studio 11.1.1 Ultimate

Results:   OK with AVCHD and other HD playback, 1920x1080 60i included.  Preview OK for small AVCHD projects, but the preview screen sometimes goes black if one toggles rapidly between clips, but this may be more a problem of CPU load or drive transfer speed than the graphics card.