http://bugs.winehq.org/show_bug.cgi?id=32067
--- Comment #4 from DL dredgingthelake@gmail.com 2012-10-31 22:20:59 CDT --- (In reply to comment #3)
Hum, I'm sorry, I don't find any key or entry named Direct3D (I made a research in the registry)
You have to create it yourself. Go into HKEY_CURRENT_USER/Wine and then right click/new/key, name it Direct3D. Then in that key (looks like a folder) create a new "string value" and call it VideoMemorySize, then double click and change the value to your memory size in MB (without the MB) e.g 896