DVB-S channel preview not working in Windows 7 (1 Viewer)

[gammanoid]

MediaPortal Version: MediaPortal 1.1.0 BETA 1
MediaPortal Skin: Xface - 1.9.0
Windows Version: XP SP3
CPU Type: Intel Pentium E5200
HDD: WD 640 GB Green (WD6400AACS)
Memory: 2048 MB (DDR2-800 DDR2 SDRAM)
Motherboard: Gigabyte GA-EP43-DS3L
Video Card: ATI Radeon HD 3450 (RV620)
Video Card Driver: Catalyst 9.6
Sound Card: Realtek ALC888 @ Intel 82801JB ICH10 - High Definition Audio Controller
Sound Card AC3: Optical out
Sound Card Driver: Realtek 5.10.0.5864
1. TV Card: TeVii S460 PCI (DVB-S2)
1. TV Card Type:
1. TV Card Driver: ProfDVBS Driver 1.1.0.5 W32 hack TeViiS460
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: CyberLink 264 Decoder v. 2.3.0610
MPEG2 Audio Codec:
h.264 Video Codec:
Satelite/CableTV Provider:
HTPC Case: Silverstone LC16S-MR
Cooling:
Power Supply:
Remote:
TV:
TV - HTPC Connection:

After clean installation I can't to preview any DVB-S channel in Windows 7. This issue I have in 1.1.0 BETA 1 and SVN(24281) too. I has tried out under Windows 7 Ultimate RUS, Windows 7 Ultimate EN and Windows 7 Home Premium RUS with the same result. In Vista or XP it's working.

 

[gammanoid]

I will answer to myself. There is a problem in a system font size. By default at my systems has 125% font size. When i change it to 100% all became as it should be.