Texture mode changes not undone when returning to classic mode

[josephcsible]

On the start menu, press Shift+T, then keep pressing Esc until you get "reset special modes". Pick it (Shift+R), then press c. The following will be wrong:

1. The text "move the camera with arrow keys and Home/End" will still be on the screen
2. The player won't be drawn
3. Texture mode will still be active