same problem here with my HTC Desire.
First launch: it finds my PC, i can type the PIN code but can´t confirm. nothing is happening after typing PIN code
Second launch: it finds my PC (server), i click on it, the server in the list becomes grey and nothing is happening, i can only refresh the list
After I cleaned app data of PowerDVD Remote FREE in my phone, i was able to type the PIN again, but still can´t confirm it, only re-type or go back to servers list
I tried to disable antivirus and firewall in my PC, no luck...