There seem to be a lot of people affected by this - I have the same issue with 1.07.  win7 x64 with single AMD 5870.  Why would such a very popular combination of OS and Video not have already been tested?

C0Y0T6, I tried numerous permutations, but what finally worked for me was 1) turning anti-aliasing off on my Elemental video options, and parricularly 2) going to windowed mode.  Exit out of the game and then reboot and start a new game.  There still is a white screen for a few seconds, but you then should get the 3D map.  Good luck!

I have been running in a window, and also tried limiting the game to a single core.  I have turned off the AA (the first thing that I did).  Still nothing on this.  Really disapointing.  My PC runs the most demanding of games at high frame rates.  This is a completely unsatisfactory result.  I am beginning my quest for a refund (or to spam everywhere about how bad the game is, Stardocks choice) today.  I hope to see them at least have service that is better than their coding.

Ok so I've updated to the latest Radeon drivers and also to 1.08b, and......still have this problem. There has been a change though, after installing 1.08 instead of being a predominantly white screen with a hint of blue on one side and yellow on the other, my screen is now probably 80% white with a green stripe on the left and a red stripe on the right, much like the italian flag.

Previously (for v1.07 and the 10.8 radeon drivers) I did a complete uninstall of all the gfx drivers, rebooted driverless, then downloaded the full catalyst pack, and that made no difference for me unfortunately COYOT6

Pretty disappointing for a preorder customer, I'd really like to be able to play the game sometime. That being said I see how much work the guys are doing on the game so don't want to complain too much. But still, sad panda.

Tried your suggestions C0Y0T6 - and can happily say has corrected the issue on my machine also, no more strange polygons

Happily ran 20+ turns without an issue and noticed spell graphics also look better

This issue has resurfaced for me with Elemental 1.1, and my old solutions (windowed mode, turn off AA and reboot) no longer work.  Any thoughts?