Scanning imaging resolution or size problem

Hi all,

I have a Brother MFC scanner. I use a TWAIN API library to scan and
acquire images at 200 X 200 DPI. I use ScanDLL50 library from
Informatik to scan papers with no compression into multi-page TIF
format.

Recently, I ran into a problem on a Windows XP Media Center computer.
No matter what scanner I use, the papers I scan get only partially
scanned. For example, if I scan an A4 paper, the result image has only
some portion of the page. Like middle portion of the paper has been
enlarged and the rest cropped. This happens only with this particular
software. If I use windows scanner wizard, it works normal. I think
there is some setting in this windows install that is doing this.

Can someone help me out?

Appreciate it.

Malay