Hi any help would be much appreciated,
Kensington wireless optical mouse 72314:
With new batteries and on a plain white sheet of A4 the mouse is still jittery across the screen and is unusable, i think i have reset it although as the light constantly flashes red there is no way to tell. Kensington website is useless as they only cater for their new models and I've tried googling all sorts... Help please

HotS