"no suitable decoder module" ?

[qwazokm]

Hi, long time user but first time poster. I've never had a problem with VLC before, but I finally updated to 2.0.7 (or the latest) for Windows, and had these errors pop up no matter what I'm trying to open. Sorry if I'm doing this wrong.

No suitable decoder module:
VLC does not support the audio or video format "mpga". Unfortunately there is no way for you to fix this.
No suitable decoder module:
VLC does not support the audio or video format "mp4v". Unfortunately there is no way for you to fix this.
No suitable decoder module:
VLC does not support the audio or video format "a52 ". Unfortunately there is no way for you to fix this.

Of course these change depending on what I'm opening. If it's a movie (as above) it shows those, or if it's an audio song it's

No suitable decoder module:
VLC does not support the audio or video format "mpga". Unfortunately there is no way for you to fix this.

I don't know what else I should add. I've tried looking it up but I've only found anything really related in Linux support pages full of stuff I don't understand. Any advice? I have already tried uninstalling and reinstalling, I reinstalled the next to last version, and I now have the most recent again.

As I said, these are files I've run and opened many times and are now not working in VLC. They do work in Windows Media surprisingly.

[Lotesdelere]

Reset VLC preferences:
http://wiki.videolan.org/Reset_prefs

If it doesn't help then delete the whole %appdata%\vlc folder.

[qwazokm]

Thanks for the response. I tried both of those things and neither worked. I tried them both independently and then together, and as far as I could tell nothing changed. Anything else that might be worth trying?