Find the driver for the webcam online (or if you are using windows 7, almost all of the webcams are in windows update).
A side note, however, you don't really want a 5 mp webcam when it comes to video chatting, as the higher the pixelage, the higher CPU usage, and a MUCH higher network usage. As you can see here even the most expensive, highest quality webcams are at most 2 mp. I use a VX-1000 (a 1.3 mp camera.. or VGA I forgot), it cost 20 bucks and it works wonderfully.
I cannot figure this out. I have an external webcam connected and has the driver (AMCap). After it says that it's activated, I turn on AMCap and set it to capture, but then it brings up the following prompt:
Unable to start the capture graph
[0x80004005 / 12245]
Note: Here are all the system details I can list:
Windows XP 32-bit
Intel Inside Celeron D processor
ATI Rage Pro graphics card (laptop has ATI Radeon X300, but has crashed)
ATI Catalyst graphics drivers
Windows Service Pack 2
Intel(R) PRO/100 VE Network Connection
Local Area Connection 3 internet connection