[TV] Live TV preview screen blank (1 Viewer)

[dobyken]

Using the TV menu Channel button and selecting channel used to display in the TV preview window. Now I get audio but no video unless I click on preview pane then get full screen video and audio. In 1.1alpha both audio and video appeared in the preview window but that was on a different computer than I'm using now.

MediaPortal Version: 1.1beta1
MediaPortal Skin: StreamedMP
Windows Version: XP Home SP3
CPU Type: Intel Dual Core
HDD: 2GB on 3 SATA
Memory: 2GB DDR2
Motherboard: Intel DG45ID
Video Card: Intel Onboard HD4500
Video Card Driver:
Sound Card: Intel HDMI
Sound Card AC3:
Sound Card Driver:
1. TV Card: HDHomerun
1. TV Card Type: ATSC
1. TV Card Driver: 0415
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec:
MPEG2 Audio Codec:
h.264 Video Codec:
Satelite/CableTV Provider:
HTPC Case: Silverstone
Cooling: Stock
Power Supply:
Remote: StreamZAP
TV: Visio GV42LFHD LCD
TV - HTPC Connection: HDMI