Ok now it's really driving me nuts...
I was so happy it worked on the Server via RDP, until i tried to work with the WebPart on my Client Desktop. There it just won't work 😞
Configuration of the two Systems:
config: Client / Server
Browser: IE 9, Firefox, Chrome / IE 8
OS: Win 7 Professional / Windows Server 2008 R2
Silverlight: 5.0.61118.0 / 5.0.61118.0
Trust Settings: Local Intranet / Local Intranet
Could it be, that the Silverlight Mapping WebPart somehow has no rights to show the Pins on my Client Desktop?
Attached you can see it is definitely the same WebPart that works on the Server but not on the Client...
Could it be some configuration Problem e.g. in the clientaccesspolicy.xml ?
I feel i am close to get it running, but i still need some tips to get into the right direction 🙂
btw: i tried all compatibility views on my Client IE from V7 to V9 (compatibility) ...