...
Does that mean everything's fixed?
If not, please just make a copy of your autoexec, then empty it out (apart from the 'skip nades' script), delete saved.cfg, reset binds, and see if you still can't use scrolling in edit mode. If you can't, you must have changed scripts.cfg. Oh, unless you have scripts in the scripts folder; I forgot about that.
Does that mean everything's fixed?
If not, please just make a copy of your autoexec, then empty it out (apart from the 'skip nades' script), delete saved.cfg, reset binds, and see if you still can't use scrolling in edit mode. If you can't, you must have changed scripts.cfg. Oh, unless you have scripts in the scripts folder; I forgot about that.