Hello all! I just currently did my first hack on my F900BT by installing the hybrid 4.01 and some new maps. Unit is working great and maps look and work great. Only issue is now the unit wont play music from the SD or USB. They are not greyed out.....they start up....just don't do anything. They don't show any songs and don't play. I can put pictures on them and install splash screens. I can look at the card in explorer and see all the mp3's on there. It's as if it just doesn't know what to do with them. Followed the instructions that were in the read me file.....but now that i look on here....i see a post that said "Open commander and copy all the copy folder onto the flash disk. Move the data.zip into the correct place... " Where does the data.zip go? I just copied it over to my flash disk with the rest of the files. Is that the issue? Anyone? Thanks in advance!