Hi, Using 1.5 beta 2 on a Powerbook, although this problem has happened to me in the stable version (1.0.7) as well. I'll start up FF, for a bit I'll be able to type. But after a while, I'll try to type in the address field, the search field, and any field on a page for that matter, and a cursor won't show up and I won't be able to type. I've tried typing when I don't see a blinking cursor, but that doesn't work. Any ideas would be greatly appreciated. Thanks.