Page 1 of Sony DVP S725 Operating Noise 2 !!

I just replaced my first sony DVP S725 with another from Richer Sounds. This one is absolutely quiet during play except for two things -

(1) when I press "stop" it makes a squeaking sound (not always)

(2) sometimes this sound appears when skipping through menu`s on the DVD )again not always

Apart from this the machine works flawlessly - anyone had this problem with theirs? Obviously I don`t want to return a machine for nothing as it works fine otherrwise!!

Sensible answers only please

Thanks

John Y