No Audio from ANY Browsers (Tried Everything)

Hello, I need some serious help here..

I have audio from winamp, and on windows everything is ok.. but my browser wont play any audio..

I have downloaded the correct drivers for my laptop
I have downloaded k-lite kodec pack
I have uninstalled / reinstalled firefox
I have tried a system restore
Installed the latest Flash / Java
Checked the Volume Mixer.. all levels are on highest possible..

Please help me here.. I dont fancy shelling out £500 for a new laptop because I can't hear audio when browsing the internet..

Thank you for reading