Major Dropped Frames but no Pixelizing/Stuttering (1 Viewer)

[Cousin_Jerry]

MediaPortal Version: 1.1.0 RC3
MediaPortal Skin: Blue 3
Windows Version: WinXP MCE2005 RU2
CPU Type: Mobile AMD 2500+ Server, Atom 330 Client
HDD: Seagate 40GB, 160GB & 320GB Server, 160GB Client
Memory: 1.25GB DDR400 Server, 2GB Client
Motherboard: DFI NFII Ultra Server, ACER Revo 3610 Client
Video Card: ATI 9600np 256MB Server, ION Client
Video Card Driver: 8.7 Server, 197.45 Client
Sound Card: NForce On-Board Server, On-Board Optical Client
Sound Card AC3: Optical Out
Sound Card Driver:
1. TV Card: Hauppauge PVR-150
1. TV Card Type: Analog
1. TV Card Driver:
2. TV Card: Hauppauge PVR-150
2. TV Card Type: Analog
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: Antec Overture Server, Acer Revo Client
Cooling:
Power Supply: Antec 380W
Remote: Snapstream Firefly
TV: Zenith 4:3 HDTV CRT
TV - HTPC Connection: HDMI

I have a bit of a strange issue, I've had to reinstall windows because of some nasty malware and am now getting basically just as many dropped frames as drawn frames when I press SHIFT-1. The stranger part is that there doesn't seem to have any effect on the picture.

Anyone with any thoughts?

 

[Cousin_Jerry]

Update:

This issue has resolved itself by either the new version of MP (1.1.1) or the new codec (NVidia PureVideo).

Thanks.