DGT

When my computer wakes up from a powersaving state (stand-by, hibernate etc. XP as well as Vista) the board does not react anymore.

You can work around this by not allowing the computer to go in a power save state.

A more elegant solution is to disallow the computer to turn off the power of the USB connection in which the board is plugged in.

For this you have to open the Device Manager of Windows: navigate to it throug your Control Panel - System - Hardware Tab - Device Manager or  press the Windows-key in combination with Pause-Break on your keyoard.

First open the "Universal Serial Bus Controlers"  in the Device Manager by clicking on the "+" sign or double-clicking the word.

The difficult part is to find wich "USB Root Hub" (USB plug) the board is connected to.

You should disable them one after another by pressing the right mouse button and then choose "disable". Windows will ask you if you really want that. Probably one of these will turn off the mouse or keyboard or both, but they will work again if you plug them in another USB connector, so be sure that you don't disable them all at once.

If the computer tell you to restart, then most likely you have the one the DGT e-board is connected to. Do not restart, but enable the USB Root Hub again. Now right-click again on this device and choose "Properties", next choose the "Power Management" Tab and uncheck the box before "Allow the computer to turn off this device to save power"

Of course you can do this with all your USB Root Hubs, but  only one is more power efficient.

When you plug in your board in another USB connector though it can be shut off, when this connector is allowed to power down.

DGT is working on  an update in the driver, so that the computer can not shut down the power of the chessboard without action of the user. Please look in our download page on a regular basis.