Well i have a z6m it works pretty good but its been acting really weird latly. I use it to play music on because it has a mp3 player on it. It used to when i would plug it into the usb cord that came with it it would let me sync my music right away from windows media p[layer 11. Now it wont even conncet in sync mode only is usb. Then if it does conccet in sync mode it says music on mp3 its currentyly unavilbal (sp???) and i cant figure out why. It will sync the music on the regular usb mode but wont show up on mp3 just on sounds can anyone help me with this. Also i have the 512 mb sd card that came with the phone. TIA