We have a known issue logging out of the Forums, which will affect people who logged in during the past two days, and it will affect them for 7 days from the time they last logged in.
Should anyone be having any problem logging in or out, please delete all your cookies in your browser, which will enable you to log in and out successfully.
In Firefox go to Tools > Options > Privacy > Remove Individual Cookies > select SCLERO.ORG and then select Remove Cookies > Click OK.
We apologize for the inconvenience. The problem as been solved, but it will just take awhile for it to expire from internet system caches.