Strange hyperlink behavior
 

In Foxpro I add a hyperlink to a sheet.
When I open the sheet the hyperlink looks good, but the cursor don't
change in a pointing hand.
When I select the cell, press F2 and enter than the link works.
Any idea?
oex = CREATEOBJECT('Excel.Application')
oex.ActiveSheet.hyperlinks.add(oex.ActiveSheet.Cel ls(5,10),"http://local
host/test/photo1.jpg")

thanks,
Jan