I currently have 10.1.1 installed on my G4, however it has no Chinese input method installed. So I decided to grab the new 2Z updated version of 10.1 update CD (there are two versions, one starts with serial number 1Z, the other with 2Z, 1Z has no chinese input, but the 2Z does) But now I'm unable to install 10.1 over my 10.1.1 It just won't let me. Keep saying there is no previous version found. Is there a way for me to do so without reformating and install 10.0 then update to 10.1?