Page setup issue (kinda urgent)

Hi! I'm designing a report with 2 columns. The problem is that CR doesnt seem to use all the width...

Left margin: 0,7cm
right margin: 0cm

the column width is 10cm and the horizontal space width is 0.2 cm. I'd need to set the space to 0.5cm, since it is a little off centered, but when I do, CR prints only 1 column because its too wide. But on paper, I still have room for more than a quater inch... is there any way I can set the "report width".. because, what I'm trying top print HAS to fit in 2 column in one page, but I seems like crystal report is printing on a 10inch wide paper... Is there any pklace I can set a wider paper format or anything??? Thank you!

That might be confusing, so just ask for more information, ill be around! Thank you for your time!! thats appreciated!

crystal report is weird... I didnt change anything, then suddenly uit works fine, then not. And it works fin on a EPSON C84, but off centered on a HP LaserJet 3500 ... dang it!