Need help with Play Store!!!

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http://forum.xda-developers.com – Hello, i was on Jb 4.1 Stock Rom, and changed the DPI to from 213 to 160. So, there were many apps i couldn't find in Play Store, like Nvidia tegra Zone. I changed the DPI Back to 213, and wiped Cache, but it didn't do it. After that, i Deodexed my Rom, and Installed TRUE TABLET UI, wiped Cache and Davlik cache.... Nothing happend. There are hundred apps i cant download/install, need help, any ideas? Perhaps delete gapps and Install new ones? Will that help? (HowTos)