Unable to do anything: "Read only file system"

[psed]

After few hours of working such message appears and there is impossible to work until reboot. Has anyone faced this problem? Thanks!

[J.Naw]

Try booting up your Install disc, Navigate to the Filesystem, Click properties, and see if it says "allow read and write" or something similiar for all profiles, if not, then, you need to change it, Unless im wrong. Haven't had this happen to me.. Hope this helps!