On the first area, when you achieve $50K the game crashes. Everytime. This should be fixed.

same issue, though I think it might be 60 K for me

Might be.. I only know I got 18K in royalties at once and jumped from $44K to crashed. :D

This seems to be related to when switching to stage 2 of the game, which happens when you get $50.000.
A workaround as mention in another thread, is to turn off videos in the options menu (F2), just before reaching that amount. This will allow it to instantly switch to stage 2. You can then turn videos on again after that.

This seems to be related to playing the stage 2 video, which apparently does not work in game.
You can view the stage 2 video located here "/Lula - The Sexy Empire/DATA/Video/" It is called "ST2_INIT.cut".
I used VLC Video player, not sure if others work.

Hopefully this can be fixed somehow in the future.

EDIT:
Just read in another thread about a fix that also works.
"Set compatibility mode to Windows 2000 (Running on Windows 7 64bit)"
Tried it, and this seemed to work for me as well.