Hi, molnibalage,
Your system should handle jane's F-15 without a itch.
Sorry, if I'm being redundant, here, but did you update your graphic's card drivers ? During the trial and error process for fixing the game, most of the game crashes (especially while loading the 3D world) were drivers related.
Here are some other questions/suggestions :
- Do you use nglide? Make sure you don't have two glide-wrapper on your system. Nothing good ever comes from that.
- If you can access it, did you check in the game's options menu that the card driver is set to 3dfx mode ?
I suggest you add again the game via Steam, since you got some success navigating through the UI by doing so, and then check this specific menu (sorry, my menu is in french, but you shouldn't have any problem finding the right options).
- As a last resort, you can also try these ddraw tools from my dropbox public folder(they're safe, no worries) :
https://dl.dropboxusercontent.com/u/14017931/w7ddpatcher.ziphttps://dl.dropboxusercontent.com/u/14017931/ddwrapper.zipThere's no guarantee it will fix your issues, but it's definitely worth a try. I got good results with w7ddpatcher on fixing some menu's trouble for another game (M1Tank Platoon 2). You got nothing to loose here.
Hope this helps, keep me posted.
Regards,
Andromedius.