This is strange. At home I have set my PC to log me in automatically whenever I enter the site, and if I log in from a different PC or MAC, I only have to enter the password once.
If you give me a few hours, I'll PM Admin and find out if it's something at our end or if it's at your end.
Check your PC's security settings. It may be that your own security is set to a high level, which requires you to validate your password to allow you to access the site, but if you set your preference to 'Logged In Forever' then that would bypass these issues.
Hope this helps a wee bit.
