My blog administrator has just updated me to 1.5. When I log in, using my Firefox browser (1.0), I find that the title stuff at the top of the page is all screwed up. The "WordPress" title, for example, is on the same line as the Dashboard|Write|Manage line. But if I log-in using IE, then everything looks great.
It would be nice if WP 1.5 was configured to look right for Firefox.