I am trying to use the Mappoint in my application ....

I am trying to use the Mappoint in my application developing in VC++ . i inserted the ActiveX control in a dialogbox.But Problem is that. for the first time My mouse pointer crass the container boundary it a crash occur. if i ignore the Message.Mappoint ActiveX control works fine for the rest life of the program. If i try to debug the application and found that it crashed in the COleControlContainer::OnUIActivate(...)
Becouse ASSERT( m_PSiteUIActive==NULL) fails.
I will be thankfull for your any positive response.

Microsoft officially only supports the MapPoint ActiveX Control in VB6. We know it works reasonable well in some other languages but VC++ has some known issues with MapPoint's OCX. Apparently, the new Visual Studio .NET languages work well - that may be worth looking at.