So I bought myself a new Xbox 360, I wanted the newer slim model.
Unfortunately I made a mistake without realizing. I had copied my profile and all my saved game files to a USB device to transfer to my new system. But when I downloaded my profile to the new system it downloaded a year-old profile from the last time I signed onto Xbox LIVE (it was around mid-December of 2011). I didn't realize this was how it worked, because I rarely signed onto Xbox LIVE with my old system because it wasn't wireless and I had to use the ethernet cable (which was sort of a pain because of the distance between the system and my modem).
This meant I lost the Achievements I had earned from that last time I signed onto LIVE and now. When I played some of the games I had earned Achievements in, some of them were able to sort of be "re-triggered", but not all of them.
For example: in LEGO Star Wars III The Clone Wars, when I started the game up, it recognized that I had gotten certain Achievements, like one for completing the game to 100%, or unlocking all of a specific type of character. But it did NOT recognize Achievements like getting all of the Mini-kits (Despite the fact that I DO have them all).
Is there any way I can sort of "re-trigger" these Achievements so I don't have to do them all over again or am I out of luck?