iMac (OSX.6.8) at home, I'm in another state using my MacBook (OSx.7.3). Prior to my upgrade to Lion I could always see the iMac on Finder Devices. Now the iMac doesn't show up. "Back to my Mac" on MobileMe has been disabled due to the upgrade. Finder > Preferences> Sidebar all shared options enabled; all displayable items Finder > Preferences > General are checked. I see no Shared Computer anymore.
