I have a Vaio VPCL14SC1E computer. While I am typing my cursor disappears - usually every minute or two - and I have to click the point I am typing to continue. It seems that the window becomes inactivebecause the blue border becomes pale blue as if it has moved to the background. This happens in all applications and in emails and on the internet. I have changes batteries in both the wireless keyboard (Sony) and the wireless mouse (Logitech) to no effect. The disappearance is preceded by the blue circle flashing on the cursor pointer.
Any help would be greatly appreciated.
Thanks
Phil