Voip reciving cuts out while ingame

[Hitman.2.5]

Ever since installing windows 7 my TS3 will do this thing where say I'm in game I will not be able to hear anything on TS3 the sound for all voip applications (ts3, ingame Voip and one other Voip program) tbh I don't care about the other voip application all i want is for TS 3 to work.

I have a X-fi titanium Fatality Pro, drivers up to date
I have the latest TS version.

also another problem is that my PTT will stop working all together so every 10 mins i have to restart my TS.

would really appreciate a solution ASAP.