Following these steps will eliminate the problem:
1) Download a file named PyroBrowseReset2.reg from the following locations:
http://www.cakewalk.com/Support/Pyro/PyroBrowseReset2.reg
Save the file on your computer.
2) Make sure Pyro is closed, then double-click on the PyroBrowseReset2.reg file
3) Restart Pyro and try again.