Baseline (Widescreen) Solution & Issues
Only supports 4:3 resolutions. Use the Widescreen Mod.
Everything has the correct dimensions. Nothing increases in size at higher resolutions.
FMV cutscenes are windowboxed. All menu screens are windowboxed (inventory, map, character creation, etc.) while the HUD spans to the edges of the resolution.
Ultra/Super-Wide (21:9/32:9) Specific Solution & Issues
Eyefinity / Surround Specific Solution & Issues
Same as widescreen method. Some higher resolutions crash on startup (GemRB might work to get around this but has not been tested).
4k UHD Specific Solution & Issues