porgesomer: Can anyone give me a quick tutorial on how exactly to enable the game to run on any higher resolution than 640x480 and how to install the classic stone UI for that resolution.. I don't actually mind to play the game on 1024x768 if it's possible.
Fenixp: All right, first of all, install and launch Baldur's Gate at least once - just going into main menu should be sufficient. Now, download files from the two links posted by
ZellSF (widescreen-v3.07.exe and TWM_GUI_beta0,994.exe)
After finishing these downloads, open the widescreen-v3.07.exe file. A standard installer will pop up. When it asks you for a path, point it towards where you have Baldur's Gate installed (it might even detect this automatically) and click Install. When the installation is finished, a
cmd window will pop up. You can input options into this window by typing them and pressing Enter when you're finished - so to pick language as English, type 0 and press Enter and so on. If you follow the values shown on the image I have linked, you'll end up with a game running @1280x768 (16:9 aspect ration, so it should fit your screen). When installation is finished, launch your game and try getting in-game - UI will be all screwed up, but we'll get to that later, important thing is that it's now running at the desired resolution.
Now for the UI mod. Launch the TWM_GUI_beta0,994.exe file and extract it into your Baldur's Gate folder (you'll have to manually select it in the extraction window) first. Now navigate into your Baldur's Gate folder and find a file called Setup-TWM_GUI.exe. Open it. You will be presented with a similar command window that you've seen during widescreen mod installation - again, input desired value on your keyboard and press enter to confirm.
These are the values I have used, but I highly recommend reading the forum post linked by ZellSF with the download link and choosing which options you want for yourself. When you launch the game now, you should see UI displaying properly without weird black borders and on entire screen (or filled with background image when the UI graphics can't fill entire screen)
If you run into a weird graphical glitch where borders of fog of war are strangely spiky, let me know and I'll tell you how to sort that out.
That's an amazing guide! Thank you very much! But regarding the "weird graphical glitch where borders of fog of war are strangely spiky" - I do get it even when I am trying to run the game on native resolution even before all the wide screen/GUI thingies... Is there a way past it?