http://bugs.winehq.org/show_bug.cgi?id=11203
--- Comment #57 from Stefan Dösinger stefan@codeweavers.com 2012-11-29 16:15:12 CST --- (In reply to comment #56)
(==) intel(0): Depth 24, (--) framebuffer bpp 32
Your graphics card is not the issue, it uses a 32 bit framebuffer as well. The application or some part in Wine doesn't deal correctly with the changed framebuffer depth. Since Enterprise Architect 6.5 was apparently released in 2006, I suspect the latter - by 2006, virtually all GPUs that were still used used a 32 bit framebuffer.
I tried to find a EA 6.5 demo, but could not find any. Do you know a download link where I can find it?