Smartboards sleeping

[TechMonkey]

I have one white board in a class room that seems to be going into a sleep mode. I have never seen this before and all others that have been installed seem fine.
The teacher will start their machine and the smart board is recognised and connect but half way through a lesson the smart board will drop off and the USB cable will have to be unplugged and then re-plugged in to get it to work again.
I have checked power mode and it is all on and checked wake up settings on the USB and the board in Device manager but all settings are the same as others that work fine!!

Any ideas?

[speckytecky]

I had a similar problem after setting the Teachers up with limited accounts. It turned out that the notebooks, in this case, were picking up power settings off the admin log on full control setting even though the machines were logged on in the limited teacher setting. I had to reset the accounts to full control. this seems to have sorted the problem out.

[TechMonkey]

Thanks for the reply
Was this just on certain machines or on all machines?
These are all workstations using standard accounts so I think it may be something different but I will take a look at resetting the users profile.

Ta again