PR Mumble not linking with BF2

[DoubleCore]

Ok I have this problem for a really long time and it really getting on my nerves!
Project reality works fine but PR Mumble doing some problems.
As the title says - I can't hear people in-game, probably because it's not linking with the game

I tried to re-install Mumble - don't work.
I tried to re-install PR - don't work.
I tried to re-install BF2 + PR + PR Mumble - still don't work.

I've created a new soldier and it still DON'T WORK!!!

Every time I enter my Player Name in the MsgBox, I get this pop-up:
http://i.imgur.com/mYrK2.png

Any ideas?

[Knallkopp_02]

Did you accept the certificate?
Did you start Mumble and PR as admin?
Do you get a message from Mumble, that BF2 is linked to Mumble?

Regards

[DoubleCore]

Did you accept the certificate?
Did you start Mumble and PR as admin?
Do you get a message from Mumble, that BF2 is linked to Mumble?

Regards

1. Yes.
2. Yes.
3. No.

[LITOralis.nMd]

Change your playername to DoubelCore_ or DoubleCore2 or something, and the problem should end.