Apps won't load

I updated to 4.0, and everything was fine. I could use my apps with no problem. Now for some reason none of my apps will load. I can go to the HBC and see everything, but if I try to load something, no dice. I'm pretty novice when it comes to all of this and looked around to see if I could find the answer with no luck. I was just hoping someone might be able to give me a little insight to why this would've happened. Thanks.

What exactly are you trying to load.
Are you using a SDHC card?

I'm using an SD card. I wanted to open GeeXboX, but the Browser doesn't work, MPlayer the same.

I didn't do the updates from Nintendo in the past, and the last couple I didn't do any workaround either. I figured that might be a problem, but like I said, the apps were working at first.

Unplug your GC memory cards.

I don't have any.

Any other apps not working?

When trying to load GeeXboX I was getting some error about files may be missing/corrupt or the SD card may need to be reformatted, so I tried a different SD card and for the most part the apps have been loading (still no GeeXboX, no error, just stops loading). I reformatted the first card and it still doesn't work, so I'm guessing I'm S.O.L. on that one.

try an older version.