But, after changing language in Options dialog and restarting MM, it throws lots of error messages (all of them are script related). When MM finally opens, all toolbars are misplaced. It doesn't matter what's the language I'm changing to, nor the skin I'm using.
See the screenshots:
Initially, MM looks like this (please note the language and toolbar placement)

Then I change language to English and Restart MM.
These errors* show up:






* Errors say: "Microsoft VBScript Runtime error" and "Object required"
When MM opens, toolbars look like this:

I renamed problematic scripts and tested it again. Errors don't appear anymore, but toolbars are still misplaced, so I think we have two different bugs here.
Changing language back to PT-BR, makes everything work fine again, with no error messages and all toolbars correctly placed.