First thing I would suggest is to run through the set-up items again on this link:
http://www.mtu.com/upgrades/hoster/v...de-hoster4.htm
I especially would suggest you check for any new updates from Microsoft.
The 4.11. was a second release after fixing a couple minor bugs. If you have recently downloaded the set-up files then this is the version you got. You can check by going to Help/About Hoster and look for the dot after the 11.