I'm finding that file input controls simply don't accept clicks. When I click one, on any page (including for example the attachments page on this site), nothing happens at all. Nothing is logged to console. They work fine in earlier releases on the same machine. I spotted a report of someone else having the same problem: comment by 'eyelidless' on this page: http://ajaxian.com/archives/input-typefile-multiple-now-in-a-real-browser
I can drag files onto the control.
I haven't been able to reproduce this. Do you have the Safari 4 beta installed?
Do you have any Safari extensions installed?
Yes - and this problem was being caused by an old version of SafariStand. Sorry for not thinking of that.