My graphic card HD 5770 with HDMI 1.3 does not outputting DTS MASTER OUDIO & DOLBY THRUE HD. I was using Power DVD 9 supporting HDMI 1.3 and nothing; everything was downgraded to 5.1 DTS o 5.1 Dolby Digital. I am using windows Vista 32. The only way I can get 8 channel HD output is using windows...