I tried the above suggestions but had no luck. I completely uninstalled all versions, then uninstalled the drivers in device manager. Shut down, restarted and installed again. Then shutdown, restarted and tried the application. Unfortunately I get the same error. There is a log file that is generated by Dr Watson however I don't possess the expertise to understand what all the information means. I've pretty much cleaned out all the applications and removed the Cardbus ethernet in case that had something to do with it. Sorry, I'm at a loss but might plug on this weekend to see what I can come up with. If there are any further suggestions, I'd be happy to hear them.