Lost live tv

[pcostanza]

Don't know why but 2 systems cannot get live tv of QAM channels within GBPVR using either of my tuners (HDHR, HVR 2250, ATI650, HVR1600). Analog works fine. Recording works fine. I can crtl-K and when it starts recording, it displays live tv. The HDHR app plays live tv fine so it's something within GBPVR.
It worked this morning and I simply restarted the systems a few hours later and nothing. No MS updates were installed nor new programs. It's gotta be something simple but I couldn't find anything in the logs that stuck out however, I'm not sleuthy enough to usually find things in the logs so if any detectives want to snoop around, I'm listening.
[url=file:///C:/Users/Paul/Desktop/logs.zip][/url]

[sub]

2009-10-13 19:39:49.435 VERBOSE audio renderer filter:: Speakers (Creative SB X-Fi)

Given it was working, this probably isnt the cause, but does setting the audio renderer to 'system default' help?

[pcostanza]

Thanks but no, that didn't help. It was set to default at one point and I don't ever remember changing that but even trying others makes no difference.
I'll try reinstalling later and start from scratch. Thanks for the help.

[pcostanza]

I nuked the GBPVR directory and started from scratch and Live tv seems to be working again. However, I don't seem to be able to complete the channel scan for my HDHR. The HVR2250 QAM scans just fine but both tuners of my HDHR stop during the scan. Today I updated to the latest beta for HDHR and it now scans 1-9 instead of the 1-8 it had been doing. I've not tried all the other choices as the default frequencies have always worked perfect for the HDHR. 2 other frequencies gave me nothing and as I've not had any problems with HDHR (in a long while) I'm curious if there is another problem.
All channels are fine using the HDHR TV app.

Update: Nothing I tried all night would work and I am sort of pissed because it always worked. In the end, I used the BDA migration tool which hasn't been 100% for me but it did work. So, I'm running but my curiousity is working overtime on why it would not work.