|USB devices may not work properly, or not work at all, depending on which USB ports you plug them into.|
If your power supply is failing and not producing an accurate +5v, none of your USB ports will work properly.
Or, much less likely, you may have an IRQ sharing problem you need to fix.
See response 3 in this:
"“A problem occurred installing new hardware. This device may not work correctly”"
You may get a message like that if the device is plugged into a USB port it cannot work properly in. E.g. a front USB port, or a port in a USB hub of the type I describe at the link.
El-cheapo power supplies are a lot more likely to malfunction than ones that cost more.
Failing power supplies are common and can cause your symptoms.
Check your PS.
See response 4 in this:
If you have a video card in a slot as well as the onboard video, the power supply must meet or exceed the minimum wattage capacity and minimum current capacity at certain voltages for a system with a card with that video chipset - go to the web site of the card manufacturer and look up the specs for the card model - the minimum power supply requirements your system must have is usually stated there, often under System Requirements.
If the power supply does not meet or exceed the minumum requirements, it may work okay for a while but eventually it will be damaged by being overloaded much of the time.
"then I booted up one morning & found they would not work."
If the receiver was plugged into a USB port it should work properly in, that sounds like a failing PS, or an IRQ sharing problem - did you install a card in a slot just before that happened?
Make sure the follow the directions for installing the software for a USB device, or any device.
- you are often supposed to install the software for the device BEFORE you plug it in, THEN you plug it in and let Windows detect it.
- it is often NOT a good idea to install drivers for a device when Windows first detects it while booting, you allow it to search for drivers, it doesn't find any, and you point Windows to where drivers are, on a CD, or in a download you got for the device. CANCEL that if Windows does not find the drivers automatically after you allow it to search for them, let Windows load to the desktop, then run the proper software installation from the CD or the download you got.
If you plugged in the device BEFORE installing the software, or if you plugged it into a port it may not work properly in before or after installing the software, you may need to un-install the software fior the device that is listed in Add/Remove Programs, then install the software again or the proper way, and make sure the device is plugged into a port it should work properly in (e.g. a physical port built into the mboard on the BACK of a desktop computer) when the device is first detected.