Bandoid: So am I reading this right? Is this game not able to be played in resolutions higher than 640x480
jcompton: That is how the original BG, and Planescape: Torment were shipped and officially remained, yes. It sounds like people are saying that GOG's version, like the original, is only playable at 640x480.
The other Infinity titles (BG2 and the two Icewind Dales) either shipped with higher resolutions available, or were officially patched later to support a range. Note that even then the resolutions are fixed selections (and tend to be 4:3) so the widescreen mods are still useful if you want to use 1920x1080, 1024x600, and other now-common desktop/laptop resolutions.
I don't know man, Baldurs gate along with Planescape Torment both look just fine on my computer without any modding...maybe my monitor is just special.