Wilfried,

Here is some interesting related information. When I enable hyper-threading on the Pentium 4 machine, the shapes draw more than an order of magnitude slower than when HT is disabled. So a draw time of 500 shapes goes from seconds with HT disabled to a couple of minutes with HT enabled. Nothing else is changed - just enabling or disabling HT.

Other draw and display operations appear unaffected. Drawing 1000 pushpins in a dataset takes about one second whether HT is enabled or disabled. Shape drawing is the only case I can see so far where HT has an impact on MapPoint performance.

I suspect the HT problem has the same underlying cause as the slow shape draw time on dual core machines. I don't understand much about multi-threading so I'm at a loss to determine a solution. I could try and disable one of the processors on the dual core machine but that seems like a silly solution.

Do the HT timing results provide any insight into what is happening?

Thanks -JW