Andy Burns wrote:
On 19/07/2008 15:47, Graham. wrote:

Now that ball mice are largly a thing of the past how come promotional
mouse-mats are usually not sutable for optical mice?
Many a time I get complaints of jumping cursors

I find that a clean sheet of A4 works best for most optical mice,
perhaps promotional mouse-mats could be printed with white ink on a
white background?

I use a sheet of black Depron..