I have some problems with my Paper Mario cartridge. Sometimes the game will freeze, and an error screen consisting of a bunch of numbers and a message saying "Failed to load blah blah blah" appears. The music still plays. Fortunately, it happens at random so the game is still playable. Any idea what causes this?

- The console : Bought used about 5 years ago. Never really had any problems, but it's kind of picky about how I enter the cartridge. It doesn't like the cartridge to be all the way down, but instead about half an inch higher.

- The cartridge : Bought used at a flea market. My sister completed the game once without any problem, so I don't think it's defective. If it is, I can still exchange it, because the seller is awesome and offers a 6 months warranty. I actually used it once.

- The controller pack : Sometimes, it will mess up and say the data is corrupt when it's not. I don't think Paper Mario uses it though, so it could be irrevelant.

Anybody had similar problems?