[ubuntu] "CUPS server error" on ubuntu 9.10

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http://ubuntuforums.org – I did a fresh install of ubuntu 9.10. after I update , the cups stop working. When I use preference->default printer, it shows "CUPS server error - The CUPS scheduler is not running." When I try to open a terminal and run "http://localhost:631", it shows bash: http://localhost:631: no such file or directory If I try to type in a browser , it shows "can't connect to cups server" I am using ubuntu 3 years , no this issue, I have a MFC 210C, and it even works right after I did the fresh install and then install the driver from brother's website. two days ago there is a major update on cups, doesn't help at all. please le me know how I can fix this. any help appreciated. (Hardware)