Hauppauge WInTV PVR1300 lock-up issues

[RoyJ]

TV-Server Version: 1.0.0.0 RC2
MediaPortal Version: 1.0.0.0 RC2 (v0.9.2.20227)
MediaPortal Skin: BlueTwo Wide
Windows Version: XP SP3
CPU Type: AMD Athlon 64 X2 5200+ Socket AM2 2.7GHz Energy Efficient L2 1MB
HDD: Maxtor STM3250310AS 250GB SATAII 8MB Cache
Memory: Kingston 2GB Kit (2x1GB) DDR2 800MHz/PC2-6400 Memory Non-ecc CL5 Unbuffered 1.8V
Motherboard: Gigabyte GA-MA78GM-S2H 780G Socket AM2+
Video Card: Onboard ATI Radeon HD3200
Video Card Driver: 8.475.0.0
Sound Card: Onboard ALC889A HD audio
Sound Card AC3: Not connected
Sound Card Driver: 5.10.5532
1. TV Card: Hauppauge WinTV HVR1300
1. TV Card Type: Analog + DVB-T
1. TV Card Driver: 2.122.26109.0
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: Hauppauge WinTV MPEG2 Muxer
MPEG2 Audio Codec: Hauppauge WinTV MPEG2 Muxer
h.264 Video Codec: CyberLink H.264/AVC Decoder (PDVD7.x)
Satelite/CableTV Provider:
HTPC Case: Tsunami MJR2
Cooling: Zalman low profile
Power Supply: Tsunami integrated
Remote: Hauppauge
TV: Sony Bravia
TV - HTPC Connection: HDMI

MediaPortal keeps locking up. Sometimes I loose sound, sometines sound continues but the picture freezes, sometines the whole thing hangs and I have to re-boot.

I have been using MP for some time as a media server and had no problems. I then added the Hauppauge card so that I could use it as a PVR too. That's when the problems seemed to start. After installing the Hauppauge drivers, MP recognised the card and I was able to set things up OK. However the selected vide codec "Hauppauge WinTV MPEG2 Muxer" and audio codec "Hauppauge WinTV MPEG2 Muxer" were no longer valid options in MP Configuration. Uninstalling and re-installing the drivers restored them as valid options (but seemed to increase the IDs of the tuner cards?) Then the options disappeared the following day. The MediaPortal log seems to suggest that this could be my problem as it gives a "failed filter:Hauppauge WinTV MPEG2 Muxer not found" error each time I start-up, yet some days everything works fine.

TV seems to record OK since I installed PVR scheduler, but when watching live TV or a recorded .ts file I loose either the sound, picture or both. The .ts files play fine in WMPlayer.

Log files attached to illustrate the problems. Readme.txt in zip file details what was happening at the time. Any help appreciated as I am really impressed with Media Portal and would love to get a stable version running.