I have a problem with the "Hotkey" function what on some servers work and sometimes not. I have Windows 7 64-bit edition and tried the followed things:

-Restarting client
-run as Administrator

I have no idea why it doesnt work. And I also tryed to make the Hotkeys work global (for example: Mute my microphone on all Teamspeak-Tabs at the same time but this doesnt work. I only found a thread about a Mac problem so I hope dont make a thread to much