Hardware Not Connected

[sasa1000]

RB been running through the night and all morning up until 15 mins ago, now I have hardware not connected message and red box on screen. Power light is on and USB & signal lights both flashing blue at approx 1 sec intervals, I've tried everything I can think of but can't get it to connect. USB drivers showing ok in computer hardware properties. Any advice welcome.

Sandy

[sasa1000]

Rebooted computer and all ok now.

Sandy