When it comes up asking what profile you want to use you need to check task manager cos I often find it is still running and hasnt closed down properly yet.
Sara to get round the srcolling problem I have an extension called smoothwheel which is neat. I don't know about the thick cursor thing though.
The problems I had with 1.0 was that it would close itllef when loading a page or get stuck halfway through loading, mainly on this forum though.
Brenda, theres an extension called bookmark backup which makes a copy of all your bookmarks every day, if anything ever goes wrong you just need to revert back to one of them.
http://texturizer.net/firefox/extensions/#smoothwheel
http://www.extensionsmirror.nl/index.php?showtopic=13 - Bookmark Backup