can't install apk files?

[DulceSugar]

I'm running the gingerbread 2.3 and for some reason now I can't install apk files. My phone was acting up so the sprint store set it back to factory; I installed astro file manager and appinstaller but when downloading apk files from the evo itself, I keep getting the content unsupported message. Before I was on gingerbread, I had a different apk installer but I can't seem to find anything else in market other than the appinstaller (using the new market) and I have unknown sources checked.

any help would be greatly appreciated!

 

[suzi]

Are you sure that the settings weren't suddenly changed to disallow downloading apps from unknown sources? Sometimes gremlins change my settings?

 

[wawis]

i have the same problem in Optumus 3d i cant install apk from sd or market before i can do it... any idea???