I'm almost relieved to hear I'm not alone w/ similar problems; It is VERY frustrating. I have 100's of new inventory to list, and I'm spending most of my day struggling w/ the site instead of listing.
I write up my listing and save. I create a similar listing, save, and nothing happens other than it freezes up. Click out, re-open the site, recreate the similar listing, it saves; Do it again, same story: Frozen island. Click out, log back in, and over and over all day long. Sigh...
I have IE7, java is updated, and was told that auctiva and firefox don't get along.
I spent the afternoon on the waiting list w/ 'Live Chat', but as soon as my turn came up, I got a message "Chat is now off-line".
Did I say it was frustrating to the MAX!!!