Many users abslotly Girls of nimbuzz wants to Block theres private messeges.
Old users may be know but the New nimbuzz members not know how to block/close there private messeges in room.
So here is the simple and lettle Trick.
1. Open your nimbuzz symbian and go to Settings.
2. Now go to Nimbuzz Account.
3. At the last end you seeing > Allow chats from > Everybody.
4. Click on this option. Now see > cantacts only.
Thats all..
NOTE: Your private messeges is block in rooms and not for your cantact list. You can chat with your Cantact list.
ENJOY.