Has Anybody Ever Encountered This Before??

[CapnScurvy]

I'm more inclined to think the problem is in what Merc4ulfate pointed out.

Not to diminish the fact that a clean install is always good to do, and do it the right way. But, the fact that the tab is missing on the left side of the screen is a result of more than what a little mod soup would do. For one thing, in order for the tab to be missing, a mod would have to change the menu_1024_768.ini file to actually remove the tab completely......then through file corruption, end up leaving the tab out of the game. I know of no mod that removes the tab for the Position Keeper.

No, I'm suspecting its the resolution the game is running in that's making the left side of the screen not visible. Primarily, the computer is clipping the screen. Is he running the game as a "Window", on top of his normal system screen? The game should be allowed to run "by itself", not put into a Window. What screen resolution is his default Windows OS? Is he trying to use a Laptop (which has all kinds of oddball screen resolutions) to play the game? What resolution in-game is he using?

These types of questions are necessary when a problem like screen clipping is occurring. More than likely, its the screen resolution compared to the system resolution capabilities that's the problem.