I had WiiMC installed and watched two full seasons of a television show that I had on my USB. Worked fine. I have not modified my system in any way since then, but now when I try to watch any video files it crashes to the dump screen. All the files are under the resolution limit for the wii. Anyone have any idea asto why it would suddenly stop playing .avi files suddenly?
Beer is proof that God loves us and wants us to be happy- Benjamin Franklin
Also be sure you're using the newest 1.1.8 version.. as the changelog says it has fixed some crashing problems (with audio, auto aspect ratio and restore points).