Yesterday, I went to Verizon and got myself a brand new trackball. The only thing I am noticing so far is that it slips once in a while when I scroll up, probably because it is brand new and I am not pressing hard enough since I had an older trackball before. I did hold it down and scroll to see if that solved the problem, but it still does it once in a while. Is this normal?
Oh, one more thing. Something was stuck in the sensor when I took my trackball out so I put my finger in there and tried to rub it off very carefully. If I damaged the trackball sensor, I would know already, right? There aren't any problems I am experiencing at this time.
Update: I also seemed to fix my trackball issue my pressing down and rolling it for 10 seconds or so...seems to be much better now!