I have recently stumbled upon a problem here with my unmodded BG1 game.

Whenever I enter any building in the game no matter where it is, the game will ALWAYS crash to desktop.

This has never happened before and I don't really know why it is happening now, like I said also , my game is unmodded so I don't know what can be causing this.

Does anyone have any suggestions ?

All I saw was a simmiliar problem here on this thread, but no fix unfortunately:
https://www.gog.com/forum/baldurs_gate_series/baldurs_gate_crash_when_entering_buildings/page1

Thanks.

Also my OS is Win 7 x64.

What version of the game are you playing, and have you applied any patches or fixes?

GOG Version (latest patch maybe ?) and before I only applied the Widescreen Mod and GUI mod , but uninstalled them, and the game worked as usual, so I don't know why it isn't know

EDIT: Nevermind, apparently somehow now it's working normally. And while it does work normally I fear that the problem will appear again, thanks for trying to help Hickory and sorry everyone for wasting your time.

The problem *will* reappear again. What you have done is saved the game with widescreen data attached to your saved game, which is causing the CTDs. The widescreen mod is a "use it or lose it" option: you must not change resolutions once you've saved a game. Either reinstall the widescreen mod at *exactly* the same resolution, or start again.