Every time I log on to my PC. A box opens that says:
This action cannot be completed because the program is busy. Choose,"Switch to" to activate the busy program and correct the problem.

Underneath that is an Icon "Switch to and Retry.

I have a Logitech web cam which is unplugged, I also have a new Logitech cordless mouse.

Now, what on Earth is causing this message to come up all the time.
Incidentally, I don't have any software download from Logitech.

Go to Control Panel, Folder Options. Uncheck Hide protected operating system files, and uncheck Use simple file sharing.

Look in C:\WINDOWS\system32 for a file named req.dat.

If found, right click on req.dat, then click the Security tab. Select System and deny everything.

Reboot.

Go back to C:\WINDOWS\system32 and delete req.dat. If req.exe exists there, you can delete this file also.

OPTIONAL:
You can also enter regedit and search for/remove all req.dat and req.exe entries.

Post back with your results and any further questions.

Thanks Dan, I did as you said, but couldn't find Use simple file sharing or req.dat anywhere. Still the same I'm afraid.