Looks like you have been working on small WUs with the single core client. That seems reasonable. Setting the "Enable large WU (>5MB)" option may get you something, but AFAIK these days those bonus WUs are few and far between. SMP WUs are the rage these days.
What system(s) do you have?
The Model M is not for the faint of heart. You either like them or hate them.
Gerbils unite! Fold for UnitedGerbilNation, team 2630.