I have tried to find answer but no luck.
At random times the mouse pointer arrow starts jumping to different parts of the screen - usually later on after a full day's use but not always. Most people with this problem seem to focus on mouse, but when the problem occurs i have tried it with a different magic mouse, two older wireless apple mice and two older apple wired mice and a logitech mouse. The problems remains so it is clearly not a mouse issue. Most of the time everything is normal but sometimes the problems begin from start up.
Any ideas appreciated thanks
At random times the mouse pointer arrow starts jumping to different parts of the screen - usually later on after a full day's use but not always. Most people with this problem seem to focus on mouse, but when the problem occurs i have tried it with a different magic mouse, two older wireless apple mice and two older apple wired mice and a logitech mouse. The problems remains so it is clearly not a mouse issue. Most of the time everything is normal but sometimes the problems begin from start up.
Any ideas appreciated thanks