Fix extra digit in MP4 menus

[Phlarx]

The thousandths digit is duplicated in the MP4 menus.

Ideally, find the place the extra digit is added, and disable it.
Alternatively, un-patch during menus.

[Phlarx]

8419127 adds routine to unpatch during MP4 menus

[Phlarx]

Idea: use a strategy like Turbo's current FixUI to hide the fourth digit