I tried to login to my Playstation Network account, but when I tried to it said "cannot sign in with another users sign in ID (Email Address)" when I realized something wasn't right I went to Playstation Networks homepage and made a new account. When I tried to login with that one it gave me the same problem. I don't understand this.
1 PSN ID per PS3 USER on a console.
PS3 user 1 = PSN ID 1
PS3 user 2 = PSN ID 2
PS3 user 3 = PSN ID 3
When you Sign in To PSN on a PS3 USER that user Is perminantly linked To that PSN ID on the console.
To USE another PSN ID on the Console Requires You create a new PS3 user...
so for example
DADs PS3 user and PSN ID
MUMs PS3 user and PSN ID
Sisters PS3 user and PSN ID
Brothers PS3 User and PSN ID
They all are seperate PS3 USERSs paired to the PSN ID on the consoles the only way to unlink them is to delete the PS3 user and all the content...
SIEE PS3/PS4 Beta Tester
From SIE blog firmware 4.50 post "There is no guarantee that all USB storage devices are compatible with your system."