i have a question please answer

I bought a Bose Sounddock (original) and it is working fine... yesterday i got an error message that said Accessory not compatible with ipod touch... i just hit dissmissed, music did not stop playing or anything it is still charging and everything and it still working fine, is this just a little glitch it had, im sure its nothing because it is still working fine, 100%, anything i should be aware of?