WatchHDTV Signal Strenth -vs- MCE 2K5

I have ATI's HDTV Wonder. Works great.



I use WatchHDTV to help me set up my TERK antenna, and I get great picture and signal on all channels. 16000%+ on all the channels I like to watch.


In Sacramento this is, CH 3 KRCA (NBC), CH 6 (PBS), CH 10 (ABC), CH 13 (CBS), CH 31 (UPN), CH 40 (FOX) and CH 58 (WB)...


When I test with WatchHDTV I get all the channels and they work just fine. However when I start up MCE 2005, the signal goes down and I can't get CH 13 (CBS), occasionally it comes in, but mostly it's not available. I can tune my antenna and get channel 13 fine, but then channel 6 is no longer available.


Going back into WatchHDTV everything is fine.


Why is it that WatchHDTV get's better signal strength? What can I do to make this better? I have contemplated buying a bigger antenna, but I am afraid it won't make a difference. I took my Terk outside and the signal strength was worse, not better.


I have also combined the antenna that came with the HDTV Wonder and the Terk, with a splitter, in reverse. This does not seem to make matters better.


It seems to me that day one was much better than today, as if there has been a degradation over time.


Please help.