All my games are now trials!?!?!??

If it dosent have a trial, it dosent work. It crashes. I wanted to play murder miners after having a nostalgia moment and, my brother bought it, so i cant exactly just use his account. (Because he usually plays borderlands, or just has a password.) So
murder miners is a trial i guess

Make sure you are signed into the account that purchased the games. That would be my guess.

I was going to ask the same question - it doesnt sound like you are signed into the 360 with the right account

With the Xbox 360, you need to do a license transfer. Log in with the account that purchased the games, then goto settings - account - license transfer & follow the instructions from there. Once you have done that, you need to go to your download history,
and download each game to the console, this will only download the licenses, as you already have the games installed.

Ok, its an answer that isnt: play the account it was bought with, so ill try it when its a decent time to be awake