This happens to me too. I've tried everything I can think of, including the above. =(
I installed the game, logged in, and did the update to 1.01. The update worked fine, but now when I launch the game, the screen just stays black. There are sounds and I can alt-tab to close the game.
I unistalled Spore, installed latest DirectX (dxdiag says no problems), installed latest drivers, reinstalled spore. When I launch spore, the screen is still black. I can't even get to the update spore screen.
I tried running spore in safe mode
"C:\Program Files\Electronic Arts\SPORE\Sporebin\SporeApp.exe" -locale:en-us -safe
winxp / radeon x700.
says my computer is OK for spore.
All my other games work fine.