Congratulations on getting it fixed Scott!

I had something similar happen before and I had not closed out media player before I went back to Sonar X2.  Sonar couldn't access my audio device and I ended up having to close everything out and reboot.

Thanks for telling us what was wrong and how you fixed it. I've also had problems with sound card drivers and had to re-install them.
 
I was going to say that too, but was confused because other programs were working. Oh well at least it's fixed now !! Congratulations !!

ScottStrat
I GOT IT!!!!
 
It was the AudioBox driver.  I ended up going on the PreSonus website and following their "uninstall/install" instructions.  Had to jump through some hoops and manually delete a bunch of files.  My previous attempts at installation had been bogus. 
 
Shambler gets the grand prize for getting me to look at the driver more closely.  I just assumed since other music sources were playing ok that the driver was ok..............not.  On the plus side, I learned a lot more about Sonar and the Audiobox from the experience.  I'm just glad I wasn't up against a dead line.  I'm still curious how I screwed up the driver in the first place..........probably never know. 
 
MANY THANKS TO EVERYONE!!!!!  You all have a great (and helpful) board here, think I'll stick around.
 
Best regards,
Scott
 
 

I'm very glad you got it solved and working. Thanks for the update.
 
BTW no one here would laugh.  Scratch ones head perhaps, laugh no. 

I got no prize, yet told ya to re-install?!?.. jeez.. ya can ring the my premium rate number next time for tech support next time ;-)
 
a number of things can muck up an install. esp. if you have to plug them in a specific order.. IF you had it plugged in first then tried to install, then that wouldn't help for example..

conclusion : stick with rock solid drivers interface : RME for exemple and make music !!!

not everyone has the budget for one.. and when I did the model i wanted was delayed for a year!!! = I had to shop elsewhere.
 

I agree that everybody cannot afford 1800euros for an UFX (my car is cheaper and my Focusrite works flawlessly)