I've been having this problem for months, somehow it would disappear, lately it's not disappearing. Today I was trying to figure out what could be the cause, my only culprit is my laser mouse.
This is what happens, I'll reboot the computer, everything boots fine as usual. I'll begin to use the computer, opening a program the mouse cursor will jump or it will take effort to do a simple double-click, and finally the worse is all my icons will grow to as large as they possible can, there is no solution but to reset, if I try to shrink the icons to their original size, I can't, because they will instantly grow to the largest size. I'm making a good guess that the laser is not working probably anymore, what do you think ?
I originally was thinking my ram, silly thought, then I thought maybe my monitor, and I came the conclusion my mouse, only thing left.