SL Voice Issues

Hello world!!! I have been having issues with voice as of late. And I was wondering if anyone else has or if I have network issues on a local level. Sometimes I may be able to use voice and have others hear me, but I can not hear others. Or, I am not being heard and others I can hear. I have reinstalled viewer, made sure my audio drivers are up-to-date, and even tried a reinstall of my OS. If I am not alone with this issue, can someone advise, or help me to narrow down if it is my local ISP, along with my router. It happends to all in my home who play SL. Thank you.
See you in World!!!!
Cheers, Rogan

Check your firewall. Make sure you have slvoice.exe allowed.

I found the answer to my problems. It's the current viewer. I DL the release candidate...voice is now restored. Thanks for your response Vyper
Cheers, Rogan.