K9AGM2-FIH jerky DVD/HD1080i/HD720p playback

Update: catalyst 7.5 works better than 7.6 and 7.7, vista media center has zero problems on 7.5 

Anyone else experiences jerky/shorthangs/lags when maximize or/and watching DVD NTSC/PAL, HDTV MPEG-2 1080i/720p in different media players with and without DXVA enabled  crying
this is what i have found out that frames gets messed up, sometimes they go like crazy all up to 60fps, this is wreid, as the source files do not have so fast fps, they are around 30fps/23.976 so it has to be graphic driver, problely related to the handle of video render not 3d part, i do think X1250 can handle 1080p becose i have run some h264 and wmv 1080p trailers fine, but many times it goes crazy

Media Players
Cyberlink PowerDVD 7.3 Ultra (jerky playback of 1080i), uses only 50% of cpu
Media Player Classic (lags, sound lags after video, and jerky/lags 720p h264 content, 1080i jerky to) uses less than 60% of cpu, using Internal MPEG-2 Decoder and Elecard MPEG-2 Decoder (with or without DXVA enabled)
Windows Media Player 11 (shorthangs and lags when go to fullscreen)

Problem has to be in driver, as the same problem is in Cyberlink H.264/AVC Decoder, CoreAVC Decoder, FFDshow Decoder

most thing happend randomly  nooo
System:
K9AGM2-FIH (Radeon X1250 @ 1920x1080p 50hz, 256MB Dedicated)
AMD Athlon 64 X2 5000+ AM2 Winsor 65W
OCZ DDR2 PC2-6400 Gold GX XTC 2GB Dual Channel
Seagate Barracuda 7200.10 320GB
Hiper Media Chassis HMC-1K53A (200W, ATX 20pin + 4pin for CPU)
Sony Bravia KDL-40W2000 1080p 40″
Windows Vista Home Premium 32Bit (with Aero, same problem without to!)

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