Hey yall!
I too had problems with IE and the new player kicking me out of all my sessions. It was happening ALOT for me. I ended up switching to Firefox ... not just because of the player but I was tired of how slow IE was. Anyways once I switched to Firefox ... then nothing was working ...
! In searching some support forums, many suggested removing Quicktime and Flash then reinstalling them. That seems to have worked for me. Absolutely NO issues anymore with the player here. You may want to try just removing and then reinstalling Quicktime/Flash first if you're using IE and see if that makes a difference without having to switch to another browser. Again I made the choice to switch to Firefox because I was tired of IE. It was easy switching to Firefox, it automatically imported all my bookmarks/favourites. A little different but overall MUCH MUCH faster then IE.
Hope this helps