an included basicmap will only show on browser refresh!

an included basicmap will only show on browser refresh!

I have create a mobile page for our education package (www.bildungspaket-nf.de) and I have a problem to show a mapaera with GoogleMap!

When I open once side in my application, the map will not display and there is only a blank area ... until the Reload (F5), then the map will show!

Example: http://m.bildungspaket-nf.de/angebotsgruppen.cfm?Thema=Boxen&KatalogID=62



and then klick to the link ...TSV Rotwei...

When I insert the coplete URL http://m.bildungspaket-nf.de/angebotdetail.cfm?AngebotID=323 in browser -

the problem is not present...

On the two pics you can see some diffrent <div>'s in firebug ... but I don't know why!

Can anybody help me?




regards from Husum