I've found a way to stay logged on and thought I would pass it on. This only works once you are logged on. Type this into your address bar and press the "Go" button. http://www.straightegyptians.com/forum2/
I'm using XP and I don't know if Mac is different, but when you want to go into StaightEgyptains again, all you have to do is press the Down arrow button on the right hand side of the address bar and click on the above address and you'll go straight to the Forum Page and you'll be already logged in.
This works for me....