I picked up a 7" Wondermedia tablet with Android 2.2. I want to be able to use it (among other things) as a reader but I can't download the Nook app it says it's not compatible (altho it should be) and every other reader from the market I install all get stuck wanting something rom the SD card (which is not there - I don't have one). I can attach a USB, but it won't read it and still asks for the SD. Can anyone help me fix this or tell me what I'm doing wrong??