Cant get mumble working

[Snadams]

Ok so I am new to this, and I really want to be able to communicate threw voice.
So basically when I launch mumble from the launcher menu(I dont know if thats wrong I only got game yesterday),I get an ERROR MESSAGE saying:Critical Error
An unhandled exception has
occurred.Details are as follows:

A referral was returned from the
server.

Further details can be found in the
following file:
C:\Program Files\Project Reality\Project Reality
BF2\mods\pr\bin\PRLauncher.log

Please report this error to the Project
Reality Team, and include the log file
in your report.

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