I'm just desperate now, I'm about to buy new ones but what if it doesn't help....
These are compaq mouse and keyboard that came with the computer... PS/2, both corded, mouse with a ball, two button and a wheel. Windows XP Media Edition.
It started a couple of months ago, only related with Internet browsing. Worst affected was Firefox. WHen I clicked to write in a field, the cursor behaved as if I pressed the wheel and turned into the cross arrows to move the page around. The page was thus scrolling up and down depending how I moved the mouse. In IE the cursor seemed "not working", clicking had no effect whatsoever. Most of the time it would "pass" by itself. Just leave Internet for 30 mins or so and do something else.
Then it stopped, I had no problems for maybe a month.
Now the same problems came back, with an exception IE is fine. Only FF and it's rare. My problem is that now one of my favorite apps seems to be affected by these weird problems. And it's even weirder. When I open Photoshop, (not any other part of the suite, ImageReady works fine) certain parts of the screen are un-clickable. It looks as if the mouse click on them (you know, the mouse-over effect), but nothing happens. Sometimes keyboard shortcuts work, sometimes they don;t, but there's no shortcut for some important functions that I need to do.
Is it my Photoshop suite not working? Is it mouse? Is it OS?