I have IE and Mozilla both. Had problems with both of them with the descriptions disappearing. I could get the text entered finally, but no logos like my ebay store, paypal, and bidpay. And, when I went to preview, and came back, the description area disappeared again. I too can only get the text editor to show when usaing my own html, no design editor. Then, the auction shows with html code in it, not regular text and logos.
I did go to edit my master profile, and most of my terms were there, then I saved it again, and that seemed to work when I went back to using my master profile, except for the clickable logos. I never had any problems before either, worked like a charm. I do love this site. Hope things get fixed soon. Thanks!