This guy sent me a file named
Samurai_Deeper_Kyo_-_15_-_Our_Friend,_Red_Tiguer.avi
You´ll notice the , in the file. Somehow this comma caused mirc to try to open ,_Red_Tiguer.avi directory which of course does not exist.
The file is fine and plays and I just tried the open dir not the open.
No faltal bug, but still a bug