For others reading this, who may not be so lucky as to solve this error with a driver re-install...
This error, in my personal experience, is often an indication of power problems. Most of these webcams are very heavy power consumers, and when the power is marginal they seem to have spontaneous resets that cause AbelCam to throw this error.
Having too many USB devices plugged directly into your system can cause power problems (even though "officially" is shouldn't). USB extenders, non-powered hubs, or just using a longer cable than the cam came with can do it too.
I run 6 cams off one system. I had lots of these errors. I eventually sorted it all out by adding some good quality powered hubs to the mixture. My cam site runs 24/7, mostly unattended, and the only time my cams error out now is if I mess with them.
Of course it also helps that I'm running a 2.3 beta of AbelCam.
It includes a totally new capture "engine" called VisioForge that's quite nice. You might want to give it a try, expecially since more testers are always welcome. Check it out here:
http://www.multicamserver.com/en/membersonly/issues
Not every single feature is working yet but the basic stuff is very solid. Rumor is that there will be a new build available for downloading early next month.
