When you upgraded did you go to version 5? I did, and it created several problems for me. (win xp pro) I had kept the old version 4 exe on my hard drive and ended up going back to it and it seems to have solved the problems.
i would try to go back to the previous version you had and it may solve your problems. As far as your script errors I would try this. In internet explorer- go to tools- internet options- advanced- make sure disable script debugging (IE) is checked and display a notification abuot every script error is unchecked. Hope this helps.
