Can't install apps

[Spyder RT]

I recently unrooted my OG droid and flashed the stock SBF. I was able to install apps saved to my SD card and some from the market. Now 2 days ago I can't install any apps. This includes the market and amazon. They get downloaded, but hang upon install. I can't clear market cache as it only shows computing and never shows how much data/cache there is. Rebooted phone several times and I'm still not able to install apps. Anyone have any suggestions?

 

[Spyder RT]

I ended up removing the SD card (I couldn't unmount it from the settings menu) and I was able to clear cache and data from the market so I can download again. Still can't update maps or Gmail for some reason. Fails every time.

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