Logitech QuickCam STX vista compatibility?
when you were installing the software did a taskbar pop up appear and tell you that hardware was found, and then proceeded to install the cam and inform you that the Logitech STX is now installed and ready for use?
If not then the cam may need to be tried in another usb port as of yet it has not been recognised by windows.
Also if this is being used on a laptop, sometimes there is not enough power amps being sent be the usb port to recognise, again trying a different port may solve that.
If all else fails re install the software again, but make sure windows is allowing the cam to work, as sometimes there is an updater programme that works in conjunction with the cam to update drivers etc, this will probably be being dissalowed by either windows or your internet security programme and any part of the software that is being blocked may be stopping your cam also.