Hi, just wonder if anyone else had experienced these problems or could advise on what is causing them.... Ive got a Marantz SR5400 fed by a Sony NV930(?).. the progessive scan model of which the model number escapes me. Basically, every so often the 5400 completely cuts out, it sort of switches itself off and then back on again. It typically does this around 30 minutes after being switched on and only playing DVD's. When this last happened I replayed the exact point where it happened on the DVD and it didnt occur again so I think that this rules out specific input from the DVD player. Once it has switched off, it then more or less immediately switches itself back on and after a few seconds continues playing, howver it drops the volume down to around -60db. Also, every so often the sound drops out for around 1/2 a second and then comes back in again. This happens every so often. Ive checked the temperature of the amp and its not running particulary hot and Im not using it at high volume. Problem 3, not so important but at times its impossible to change the speaker set up on the menu. Pressing the cursors just wont allow you to get to each speakers setting. The amp sounds great in DD and DTS its just a shame I appear to be getting some teething difficulties. Any ideas on what could be causing these problems. Thanks in advance. Tim.