UPDATE: King's Quest V. This bug is REALLY strange. Probably not related at all to the Shadowgate bug, but I didn't want to create another topic that sounded so similar to this.
Dialogue is a HUGE part of this game. Every time a dialogue box pops up, it seems to blend with the sprites already on the screen and show a bunch of buggy text and incorrect colors. Also, when you open up your inventory menu the same thing happens. I only took a shot of one example, but this happens every time.
This second pic is the reverse side of the game just to show that the text isn't hidden behind the sprites.