For the last few weeks, at startup, after everything in Windows launches, I will get the familiar tone of a device driver not installed properly. Mind you, I haven't installed any new devices in several months. Everything appears to be working properly. Under Device Manager, there aren't any signs of faulty devices or uninstalled drivers,--no yellow "!".
At startup, there is also no indication on the System Tray, of anything going wrong.
How do I figure out what device isn't working properly, when everything works, and Windows isn't telling me what is wrong?