I have Firefox 1.5.0.1 no problems. I'm always logged in though.. Michael try deleting all you cookies...
EDIT:
Logged out logged back in no problems here.
Ok, so it should be a local problem. I have recently installed Firefox and appreciate its speed (especiall with the fasterfox extension). I have chosen to import the coockies and the links from IE. Yesterday, I got the login problem for the first time and sloved it by closing and re-opening Firefox. But later, the same trick did not work anymore.
I will try to delete all the cookies as you suggested. Thanks
.
Michael
[EDIT]: Yes, it seems it was a cookie problem. As suggested by sethjackson, I delete them all, logout from IE, re-start Firefox, login in the C::B forum --> it works fine again
. Thanks.