Simple website block?

my girlfriend's mom is being mean, our school's website has a service where you can log on and see your own grades, and her mom keeps going on it and making up excuses whenever she messes up to punish her.. just abit ago her mom saw that she got a 60% on a test and took her laptop away.. is there anyway to simply redirect the website to a 404 or something like that so her mom can't see it? and it wouldn't look suspicious either so it should work, and her mom would get off her case.. her grades are improving, i'll make sure of it also but just to be safe

any Idea's? thanks

Simple website block?windows 2000

There is a standalone utility called Host Handler { http://autosysbot.googlepages.com/hostha... }. When you add the URL of the website to the host handler list the browser will redirect to a "Page not found" page.

You can even delete the standalone later.