Originally Posted by R3QU13M
If you're utilizing the latest multiMAN, try enabling the RESET BUS (whatever you see similar to this name) option in the settings columnn. I know this fix your games from blackscreening and returning back to the XMB when using multiple external hdds with games on them but I'm unsure about games that run internally. I guess you'll have to try running this externally then.
I will try that. I don't have a external hdd, so i can't really test that. Thanks anyway.