I just got a new MBP 2.4i5, 4Gb. 320Gb I'm having issues managing files between different users on different partitions (all me): the machine came with a fresh install of snow leopard booted up, created an account, did all the software updates etc... partitioned the hd about half and half, one for Lion and one for Snow Leopard. *** For my research I need to still use snow leopard for the time being for some old programs that use Rosetta. *** When I got home that night I had access to my ext. drive with my time machine backups from my old macbook. I used migration assistant to transfer the user profile and files from the back up to the new SL partition. Now there are two users on the SL partition, the new user with fresh install and the migrated user. I then did a fresh install of snow leopard on the Lion partition, booted, created a user, did software update, and installed Lion. Now there are 3 users, (all still me), 2 SL users (fresh and migrated) on one partition, and 1 Lion user; all 3 users are "admins" Here is the dilemma - My problem is that when logged in as the Lion user, I can see and access all the files from the Fresh SL user, but it says I don't have access to the files from the Migrated SL user. For instance if I want to access a research paper that I know is sitting on the desktop of the Migrated SL user, if I open the SL partition, go to users, select the migrated user, the desktop folder (and all others) have a red circle with a horizontal line in the icon signifying that I do not ave access to them. This does not occur if I go to the fresh user and try to open the desktop folder for that user. Any ideas what is going on here? Why are the files locked for the migrated user but not for the fresh install user?