M5 doesn't handle scrolling via mouse scrollbar, pgup/pgdn, and arrow keys the same on essentially stock RH 5.2 (2.2.4 tho). (using the glibc binary) Scroll bar works as expected with mouse but using up arrow and down arrw (keyboard keys) introduces screen artifacts (repetition of the same line two-three times before moving on a repeating the next line or so about 2-3 times - more repetitions the faster the scroll seems to be executed. Scrolling using the mouse/scrollbar combo will clear the artifacts once they have been scrolled past. Using PgUp/PgDn keys will result in a scroll of the expected length but with the bottom third (approx) unrendered (just default grey). Going down then up will sometimes produce similar unrendered parts in top and bottom third of screen). Had a similar problem with 4.0-4.04 on NT that went away in 4.05 (and probably totally unrelated)

*** Bug 6146 has been marked as a duplicate of this bug. ***

*** This bug has been marked as a duplicate of 7354 ***