Hi everybody, I have just purchased a Macbook Pro Retina 15" to use with my S4 and I'm having issues when connecting the external monitor (DELL E228WFP) and the S4 soundcard at the same time. All the drivers are updated to the latest version and the monitor it's plugged via "Mini Display to DVI". If I plug booth sounds a beep in the speakers but not when using the macbook built in speakers. Anyone knows how to solve the problem?. Thanks and sorry for my English (google translator y no good enough).

Regards, Edu.