A500 resets to a certain date.

I've been having the same problem since Sunday. The tablet became very slow and unresponsive, had difficulty connecting to my network. I tried uninstalling apps I had recently installed, namely a live wallpaper called hyperspace. After rebooting the device, everything was right back where it was before removing the apps. I've tried performing a full factory restore and after it reboots, I'm right back where I was.

I am also unable to load the load the market.