Try the following: Manually log out of DP. Go to your cookies in FF and delete any and all cookies relating to DigitalPoint - just scroll through them until you have found and cleaned out any relating to DigitalPoint. Purge your browser cache. Log back into DP Should be resolved. If you are considering other browsers you could always try Opera. Maybe also like to think about Roboform to store passwords. Useful if you keep getting logged out of somewhere. PS - Smyrl is a girl, not a guy.
I tried at home and with IE, same thing happens BUT yesterday, I logged into DP in the morning and then left my PC all day and came back to it about 4pm and it was still logged in !? Fixed or so I thought. I logged in this morning, went away for 5 mins, when I came back I had been logged out. I'm going to try mcfox's suggestion now. Apologies to Smyrl for calling her a guy - it was the androgynous name that got me thanks everyone