Joe van Tunen - 2011-09-22

If you mean verbose mode flag in nvram boot-args, then it shouldn't affect rEFIt since that flag only affects Mac OS X booting and rEFIt occurs before that. But you can try disabling it.

I think some people have gotten rEFIt to work with MacBook Pro 2011 but with some problems:

rEFIt works without problems on a MacBook Air 2011: