"Build"="5.00.3103.1000" to "53103" (without the quotes).
Caution: Messing with the registry can be hazardous to your PC. It's always best to back up the registry before making any changes to it. If you don't know how to do this, it may be best to find someone who does and get them to help you make any needed changes.
Did this solve your problem? If so, please consider supporting the PPT FAQ with a small PayPal donation.