Hi everybody! Total noob here, so, please be gentle... I bought rooted Pandigital White 7" on ebay. The seller deleted all applications and data. I installed external SD card and started to experiment. The first thing I've tried was the installation of Kindle reader (for my .mobi's) and Aldiko (for my .epub's). Kindle works great, but I can't figure out things on Aldiko. How do you exit Aldiko? What I do is I power down the reader and power it up to get to the main screen. There must be some other way to do it! Please help!