TVtuner disappears from MCE

I ran 32-bit Win7 RC1 on my system for a number of months with zero problems. I just recently installed a Retail copy of Win7 Pro 64-bit and things continued to work fine for a week or two until Windows Media Center just stopped recognizing my tuner card. I wiped the whole thing and reinstalled but the problem repeated. My AverMedia tuner is on the Win7 list and has 64 bit drivers.

When I go to LiveTV it says:
"No tuner available to satisfy the current request"

When I try to add a tuner in MCE it get the message:
"TV Setup Cannot Continue
Some MCE services have stopped working. Select Finish to exit, restart the MCE services and restart TV setup."

Windows Media Center Scheduler Service is on.
When I try to start Windows Media Center Receiver Service I get the error "Error 0x80070015: The device is not ready."

The device manager shows the tuner is installed.

Any ideas?!

-Aaron


Win7 Professional 64-bit
AMD Athlon X2 4850e
Gigabyte GA-MA78GM-US2H
2GB DDR2 1066
AVerMedia AVerTV HD Duet Tuner
Samsung Green 500GB
nMEDIAPC 5000B case

I did download and install the latest 64-bit specific drivers from the AVerMedia website, but still no luck.

It is weird that it would work for a week and then suddenly stop. I thought it might be the result of some other software but during that good week I left it alone so it was just recording TV.

-Aaron

This is very frustrating. So I reinstalled Win7Pro this time the 32-bit and MCE's tuner function only worked for 2 days (similar to my 64-bit installs). As I mentioned before the Win7_RC1 version worked perfectly for months on this exact same hardware! I am almost out of ideas.

-Aaron

You might want to check to see if the TV tuner is failing.