OK that's almost as fast but not nearly as smooth and I can't control
precisely the position of the thumb, not to mention that to change
direction I have to move the mouse all the way to the opposite end.
Event Viewer is one place where I really need to grab the thumb to
quickly and smoothly locate the warnings and errors in both directions.
Another alternative is to use Eventviewer's Filter command to select
just what you want to see. Go to the View menu, select Filter, then
deselect everything except Warnings and Errors. The view reverts back
to 'everything' when you close and re-open Eventviewer, or you can
simply select All Records from the View menu.