You know, if you read the instructions in the first post, it tells you how to revert to the default theme. Has anyone got v4.3 working? To install, you also need Developer Mode enabled. Extract files in zip ("fdbtheme" directory and 2 scripts) MUST be in root directory of the N9. Not in MyDocs. DO NOT modify any of the files or their locations. The main "fdbtheme" directory has a folder inside it with the same name. This is correct. Leave it. Follow the instructions exactly.