If you enter MyTv and use MyVideos after that you will get issues with the preview window and with MyVideos.

2 different issues with MyVideos have been reported and confirmed.

h4. Steps to Reproduce
with ATI gpu: (see attachment i-loop.zip for logs)

1. enter MyTV
2. go to homescreen
3. stop MyTV
4. preview image freezes and stays -> http://img106.imageshack.us/img106/6880/mytvpreview5oq.jpg
5. enter MyVideo
6. start a video
7. last TV Channel is shown
8. 5 seconds later TV stops
9. start video
10. video is played

with nvidia gpu: (see attachment ronilse.zip for logs)

1. enter MyTV
2. go to homescreen
3. stop MyTV
4. preview image freezes and stays -> http://img106.imageshack.us/img106/6880/mytvpreview5oq.jpg
5. enter MyVideo
6. MediaPortal freezes and can oly be closed with Alt+F4

h4. Additional Information
nvidia gpu issue confirmed by: dman, ronilse, rochess

ati gpu issue reported by: infinityloop