when you add a new page to MyNews and brows to a image for this feed, the whole window closes and the page is not added to MyNews

h4. Steps to Reproduce
1. start configuration.exe
2. enable myNews
3. Add Site
4. Insert name
5. Insert feed
6. thumbnail -> click browse button
7. select image
Expected:
- you get back to the "add site" window
Result
- the "add site" window is closed and nothing was added to MyNews.

If you add a page without a thumbnail first, then edit an exsisting entry/site and add the thumbnail, then it works.

h4. Additional Information
http://forum.team-mediaportal.com/1-0-rc3-svn-builds-288/adding-mynews-46415/

confirmed by infinityloop