Your chances of getting an answer won't increase by posting in more than one place. It's not a lottery.
😉
I'm using AC13 on Win7 x64 and I haven't seen the problem you describe. I do agree that getting 64-bit to work can, in general, cause some teething problems but these are not that difficult to work out now that drivers are more easily available.
The issue you're facing lies in some library object you're using. Are you getting this error with the default AC13 library?
Try using the marquee tool to select only half of the project at any given time. and press F5 to view that in 3D. Then, repeatedly halve the marquee area until you find the offending object.
If you suspect it's a door/window causing the problem, remember that it's likely to be in more than one location. In that case, maybe select a portion that has the door/window and, if you get the same error, temporarily delete that door/window and try again. If the error is gone, you will easily have your culprit.
Hope this helps.
P.S. My name is not David.