My mouse pointer is out of control

[signusx11]

Today I was working with my iMac without any problem, sudenly the mouse pointer start bahaving very odd, when I tryed to click an icon, menu or whatever the mouse start moving not allowing me do the work, I changed the wireless mouse suspecting was a hardware problem but when I conected the USB mouse I got the same problem, then I shutdown the iMac but after starting I got the same problem. I suspect is a trojan virus but I heard that Leopard operating system is very robust and virus is not currently a problem. I do not know what else to do, can anyone help me with this.

Thanks in advance.

 

[MacDawg]

A trojan and a virus are two different things... but that is a discussion for another thread
Doesn't sound like that is your issue to me anyway.

Have you looked at your settings in System Preferences?
Just check to make sure everything is set the way you want it there before you do anything else.

Woof, Woof - Dawg