The real problem with Mac IE is that it was discontinued three years ago and support was officially ended last year. I don’t have any copies of Mac IE lying around to test your site, but I know that it has endless rendering problems, particularly with CSS. If I were you, I’d beg them all to switch to Safari or FireFox.
Beyond that, there are a few XHTML errors and one CSS error in your design. Cleaning them up may help.
XHTML errors: http://validator.w3.org/check?uri=http%3A%2F%2Fwww.iblather.com%2F
CSS error: http://jigsaw.w3.org/css-validator/validator?uri=http%3A%2F%2Fwww.iblather.com%2Fwp-layout.css&usermedium=all
Thanks for taking a look.
The XHTML errors are minor, nothing that would cause this kind of breakage. Some are silly – most are from MT-imported posts or bits of code from outside resources (flickr, audioblog, etc). All are negligible, though I should remove the Valid XHTML link if I don’t plan to be a nazi about XHTML validity.
The CSS error, too, was nothing: the offending line was removed without problem.
I think that I will use this as an opportunity to fuel my long-standing hate of all things Internet Explorer. Mac IE is on its way out anyway… I hope. Maybe I’ll put a “best viewed in any number of browsers that aren’t bloated with useless code and too elitist to adapt to changing technologies that don’t happen to show a high profit margin” badge or something.
Thanks, anyway.
Hey, I like the sound of that badge. ^_^ Let me know when you finish it.