Scroll wheel behaviour in Speccy Discussion Posted April 27, 2010 · Report reply In a long list of entries (eg. RAM) I can scroll down with the mouse wheel line by line, but when I scroll up one notch the list jumps up ~30 lines. I see the same behaviour for vertical scrolling (v1.1.132). Downward scrolling is fine, upward scrolling is coarse. Horizontal scrolling is consistent both ways.