Just got my DILE today. Yay! For some reason, I can't get into the backbox with the backbox keys. The lock is sitting at a slight angle (maybe 5 degrees counterclockwise of straight up/down). I can turn it a little bit further in that direction and that's it. No matter which key or direction, I can't get this lock open. So I'm wondering:

Which way is the lock supposed to turn to open? Clockwise or counterclockwise? I'm theorizing it's supposed to go clockwise, and it was overtightened at the factory, past the vertical position, so I can't push it past the translite plastic in the correct direction. I can see the lock from behind through the fan vent hole, and the lock bar is definitely not straight.

Any tips on how to fix this situation without drilling the lock? I verified the number on the lock and the keys match. Kind of frustrated!

I was able to fix my lock by removing the speaker panel as suggested. There was no way to do it otherwise for my machine. I adjusted the lock and now am able to unlock/lock it. Thanks for the suggestions, everyone.