> The last interesting thingy is the dark blue 'stack' entry. This > memory grows when I press PageDown continuously and goes down when LyX > has managed to keep up with the number of PageDown request I have > issued. So there seems to be some recusrsivity going on when LyX > cannot execute events fast enough. Is that normal?
No, it's essentially bad design. Unfortunately, many big commercial apps suffer from it as well. Cheers, Kuba Ober