mapsbaker

I am using OSX 10.7.5 AND when i try to (look in on another machine) use screen sharing the screen just flashes and screen sharing closes. this was a school computer that used remote management and i can (look in on this machine from my other mac) use screen sharing to control this mac. but can't use this one to control another . I've used the sharing prefs. thank you for taking time to respond.

bought iMac core 2 duo from a school and screen sharing has been partially disabled my other mac can share this screen but this mac (the one from the school) can't 'look in' on my other mac did some research and found that net restore can disable this feature (and something about ARD) I saw in pref>sharing that there is an ARD Public folder which i can't find on computer. anyone got any suggestions. I like this feature as i can help my kids and wife even when downstairs in my home office (dungeon)