You could do a post on your forums for MAC users?
What i mean by this is a Topic requesting help to
check a possible bug.
And then say
can you sent me a private message?
Are you using a mac?
What version of IE are you using? (What ever a mac uses).
Then hopefully the feed back can bring a speedy solution.
Something like that anyway.
The worst part is members forget to inform you that
the problem does not happen any more and your still
going around and around in circles scratching your head.