Dear John,

Thanks for your advice!!!

putting mapstyle "roadmap" on top of code doesn't work, in fact this is default style for mappoint.
Using display datamap, automatically changes to the datamap style.

But your advice to lock the windowupdate solves my problem perfect.

I never used DLL call before but it works!
Do you think this DLL call will work if somebody use my program in other windows version? (I use win 98 now)

Regards,

wim