I have been an Android user for more than a year and I have built some simple apps. I have a Huawei S7 tablet with Android 2.1 and the most recent updates. I have registered this device to my google ID and I can access, download and install many different apps from Android Market. The problem I am having is when I use the standard market screens and try to download Laputa I get the following message: pname:com.reader.books.laputa not known. Can anyone help me with this? Thank you in advance for any information you may have.