I'm losing it!!! This started about 3 or 4 days ago. When I use my page down key, I'm advancing ONE ---- LINE----AT----A=TIME!! It takes forever to go down the list of threads. I've rebooted thinking it's my pc, no help. I looked at my preferences and can't find anything there.
Help!!!!! I'm floundering here??/ In fact, I'm about to drown!