Well, to test it out, collapse & re-expand the "Menu" table on my site (the URL), and watch the text shoot out over the edge of the mis-sized table. Collapse & re-expand the overall table to restore the proper size. I don't know why this is happening exactly but I am fairly sure the trouble is with tables, though it might be higher up in the dynamic content model somewhere. Maybe someone can test & confirm this bug in other environments? I'm fairly sure it's not just a bug on my site.
WFM on WinXP, v1.1.21 build 20020826. What version/build are you using?
WFM too with the latest trunk build: 2002-09-10-08-trunk . Reporter please try with the lastest trunk builds and reopen if you still see the problem. Marking WFM.