I'm not certain on this but doesn't AOL use its own program to download emails. If I'm right then it could be that the AOL is resetting itself to be the default email program. I'm sure if this is whats happening you can overide it but I don't know enough about AOL to tell you how. Only suggestion I have is try the AOL help area, there must be one and search for using outlook express. There should be some sort of walkthru.