|You do not say what program you are trying to print from.|
If it is with multiple programs, right click on your printer icon (under printers and faxes from control panel) and select print properties. look for a default paper size or margin size that is not normal (ie: letter size 8 1/2x11, margin top & bottom 1" or 1.25" with left & right around 0.8")
If it internet printing that is giving you trouble, try highlighting your selection, go to file>print and select "selection" and OK.
Otherwise, post back more details.