tv flicker...

[tranquil]

TV-Server Version:
MediaPortal Version: 1.0 RC3
MediaPortal Skin: mepo
Windows Version: Xp Sp3
CPU Type: AMD 1800
HDD: WD 320GB
Memory: 1GB DDR
Motherboard: EPOX 8KDA3J
Video Card: ATI RADEON 9250
Video Card Driver:
Sound Card: Realek ALC 850
Sound Card AC3:
Sound Card Driver:
1. TV Card:
1. TV Card Type:
1. TV Card Driver:
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:
Cooling: Retail AMD Fan
Power Supply:
Remote:
TV: Toshiba Bomba 34"
TV - HTPC Connection:

I'm not sure this is the right forum,

i am using a pretty old TV (Toshiba Bomba 34" not flat).
which i use the native res for 720x576 with 60hz refresh rate (32bit color)
and i see a bit of flickering on the screen (only in the MP UI).

anyone knows how this can fixed/adjusted?