Could you describe the problem in more detail?
When did this start happening?
Does it happen when you boot up or randomly?
What exactly happens? Does the scroll bar move by itself?
Etc etc
My Computer
At a glance
Windows 7 Professional x64 SP1Intel Core i7 860 @2.80GHz6144MB DDR3-SDRAM (3 x 2048 DDR3)nVidia GeForce 310