ProgDSB for Windows x(64) 7.26.3

Somthing strange.

First, while viewing a channel (i.g. ProSieben) sound is haning 3-4 scounds after video. Switshing short to any other channeland back fixes the problem. Why ?

Second: while viewing the same channel, video frozes, switching short to any other channel and back also fixes this problem. Why ?

Best regards and happy xmas.