Lexie: Actually, I tried Thunderbird; for all of about 30 minutes then blew it off. I couldn't locate some features of OE that I particularly like. However, not all is lost; I just ordered the guidebook and CD from Mozilla, betwen them and the Mozilla forums, I may find out what I want.
As for Firefox, all seems to be working well, I am able to access all of the features at my credit union's site; oh, and ebay as well. That is more important!