Noise when adding wave or mp3 files


NEver had a problem in cubase 7, but after updating i’'m getting a strange noise sound playing the wave/mp3 file. sometimes, they sound good after adding, but sometimes they make a noise and wont play it.

only vst instruments are good for playing now

I dont know how to solve this. i updated all drivers, everything.

When i open the project in cubase 6, the noise is gone, so its a problem in cubase 7.

the noise sounds like a old radio or walky talky