In MT3, I typed a somewhat long entry, three paragraphs. So, not too long. I pressed preview and was reading through my post and when I found a mistake and pressed Re-Edit, two thirds of the post had been gone. Only the first paragraph was found in the re-edit screen.
I tried this again, and the same thing happened.

What browser are you using? Was all the text in the same field (i.e., all in entry body, or split between that and entry more)?

I just upgraded to MT 3.0d and am experiencing the same problem.

While I'm not able to say 100% my tests so far show that this happens consistently if I attempt to use HTML tags in my entry TITLE field. This seems to confuse MT greatly.

Can anyone else confirm this?

Is there some way to alter the color of the title font w/o using HTML tags within the title?

Update: 7/7 11:00am EST
I still can't make rhyme or reason out of this problem except to note that it *appears* to have something to do with HTML tags embedded in the entry text.