Troy, QHY5 (and SSAG which are to all intents and purposes the same thing) sometimes lose their identity. If they don't tell Windows the right manufacturer and device ID Windows goes looking for new drivers.
See
http://qhyccd.com/ccdbbs/index.php?topic=2702.0
The process works for both cameras by using the appropriate device ID.
I'd include a screen shot from Device Manager but I have an SSAG, not a QHY5.