Getting Black screen when i play youtube videos in youtube app I've BSNL Penta Tablet with 2.3.7 installed in it. Whenever I tries to watch Video in YouTube Application. It does play the video with audio only. Only Black screen appear in the video tab but never displayed. 

What could be the reason for these kinda weird behaviour?

Is the YouTube App have some bug or BSNL Penta tab is have some issues in it?

YouTube is the must app in any Tab as it gives everything you want from big screen.

Can anybody please tell me how to fix these issues?
Yeah that seems odd... I remember having the exact same issue however I figured out that it was the Downloaded FireWall application (great app to control your Data Usage btw) just "DENYING" access to the media component from within YouTube.

See if you got such apps around your system?? (the firewall suggestion is basically for rooted phones)