Managed to get the uninstall/reinstall thing figured out ... It is definitely Ghostdog's UI that is cutting off the edge of the menu screen on my setup. Uninstalling it fixes the issue. It sucks because I like everything else the mod does and really wish I could use it ...
I am running it on my android phone (Samsung Galaxy Vibrant with a native res of 800x480, if it matters.)
I am using GemRB to run the game.
I do have the widescreen mod installed. But ... I had to select the "non-GemRB" installation in order to get PST: UI to recognize that the widescreen mod was installed, otherwise PST: UI wouldn't install at all ...
To confirm that the issue is not present without PST: UI, I will have to uninstall and reinstall from scratch, which I need to do anyway. So I will try that and post back. I have run into issues uninstalling and reinstalling both the widescreen mod and PST: UI so I may have to solve those first before I can answer your last question ...