Hps140 blank screen

We purchased an HPS140 from CPC a couple of years ago.
We used it once and then it was shelved as we had no use for.
On trying to use it for the second time (within the last month) we discovered that the screen is blank (sometimes with a black rectangle).
I am aware that this is a couple of years old but I am sure that you will agree that it is reasonable to expect it to work more than twice.
Is there an update or bug fix that addresses this or do you suspect that it is a hardware fault.

From what your description it sounds as if the battery is dead.
If you let it sit for a couple of years the battery maybe bad.
The battery part number is BPHPS140

You can find a distributor in the links below.

USA and Canada:
http://www.vellemanusa.com/shops/

Every where else:
http://www.velleman.eu/shops/

Thanks
I will try that.
Is there a UK outlet that we can contact for the battery?

You can contact any Velleman distributor.
Please note that the battery is not an item they will stock, they will have to order it for you.