For years, I've used screen sharing to connect my MacBook to my iMac. It has always worked like a charm. About a month ago, it stopped working. I can still see my iMac in Finder when I'm on the laptop. But when I try to connect, I get the "busy" bar for a minute or two, then a message telling me I needed to enable screen sharing on the iMac.
Screen sharing is enabled; I never changed the setting, and I've double checked that it is still clicked. I can screen share via my MacBook with my husband's iMac across our home network, so I think the problem rests with the iMac, not with my laptop. I have tried sharing via VNC. I have tried logging out of Mobile me on the laptop. I have tried a screen sharing app. Nothing works. Can anyone think of anything I haven't tried?
I'm running OS X 10.7.5 on the iMac.