For your drive mapping issue, does disabling the Firewall resolve the issue? If so, then it's probably an issue with blocked network traffic. You'll need to find what traffic is being blocked and write rules for it. Using Adaptive mode might help, but it has limitations. You may find System traffic (non-application based) being blocked that you'll need to manually create rules for.
For the Windows Logo testing issue, have you applied the Microsoft solutions? As per the KB you stated, KB71271, this has been found to be an issue with the Windows XP software catalog system.