Cisco 3560 appears to have reloaded it's self and cleared it's configuration

Hi All,

I have just sen something strange occur on an access switch and was wondering if anyone else had seen the same thing before.

The Switch is a Cisco 3560 running firmware c3560-ipbasek9-mz.122-55.SE4.bin

The switch appears to ave reloaded it's self and wiped it's configuration. The configuration that was running on the switch had been saved many times so it was not a case of the switch was powered off and the running configuration was never copied to start up.

I tried looking for a crashinfo file to maybe tell me what had happened but I do not see one.

Anyone got any idea what might have happened ?

Thanks in advance

SW