My brother is having a lot of problems with RPG Maker XP. First, you would randomly die in battle when no enemy was attacking or it wasn't the enemies turn, but only while facing certain enemies. Then, in a different game file, using BABS, his passibility on the maps is messed up. He can go anywhere. This isn't the cause of using blank tiles other than the default one in the top left corner of the tileset that have a priority of 0 (an issue I've had before), I checked that. Now his attacks don't work. He can't damage enemies, but enemies can damage him. No numbers appear on the enemy unless the weapon is set to 0 attack. I checked over it and don't see anything wrong. It also won't change transparent colors on some tilesets he is importing.
He has his files on a flash drive, but I have mine on a different flash drive and they work fine.
I am completely stumped. Any ideas?