Sound lost after installing hdmi driver HD 4670

Hi, I just installed an HD4670 and since I didn't have access to the disk that came with the card I searched the web for the HDMI driver. Well after installing the driver I have now lost sound all together. Previously all sound was coming through my main sound card and some generic speakers. I thought installing the hdmi driver would
A) remove the add hardware notification every time I boot up
B) also give me sound through my TV when connected by HDMI.


I checked the volume controls and nothing is muted, I do see that in addition to my sound blaster there is an hdmi rear option but when I switch between the different devices nothing is muted and everything is turned.

What should I do?

[edit] turns out I lose sound only on the web browser, at least that's what I've tested so far, ventrilo still has sound etc.

When I disable the tv and set it to my flat panel again I still lose sound on the browser until I close and reopen it.