I downloaded and installed the 4.0.2.1017 Drivers on Win XP. But when i go to use the test App and hit the start capture button it comes up with:
              Error: 80004005 Cannot start graph.

And when i try to enable the mic on MSN or Ventrillo it says that another program is using it.

Any suggestions?

System specs:
Win XP (x86)
Pentium Celeron D
1GB RAM
Radion HD 4870
USB 2.0

Please make sure you are not running any of the MSN, Yahoo, Skype, etc messenger programs before installing the driver since they tend to keep directshow camera device open all the time. Make sure you fully close any of these programs in the task bar.
Then reinstall the driver. Also make sure you plug the camera only in the USB 2.0 port. You might also be seeing this problem because your CPU seems to be below then minimal specs which is Code 2 Duo.

AlexP