While adding some google map functionality to a custom nopcommerce build I came across some "gray map of death" problems with the gmaps. Basically the maps seemed to be offline - they didn't draw properly and they didn't respond correctly to mouse events (double click or drag).
Searching, I found a few references to these sorts of problems - most of which seemed to be caused by css issues (float:left seemed to be a common cause).
However, eventually this thread showed me the way forwards - http://www.reimers.dk/forums/thread/1251.aspx.
Basically, the initialisation of my AJAX tabs was causing the google map to lose its positional information - so to reset it I needed to call map.checkResize() - which seemed to cure the problem :)
I have the same issue here in my ajax update panel google map disappears, so where shall I use this map.checkResize() and your help will be much appreciated.
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