we had the same problem man and we contacted Nintendo customer services.
They remmomeneded we hold down sync button on the front of the wii for 15-20 seconds and release and then click the sync button on the back of the mote.
This didn't work with us and it ended up with us having to send our wii away to be fixed.
If you contact nintendo Customer Services they should be able ot help you further
clueless, March 2009
