Lag with resizing and rotating

Hello,

We've noticed a significant lag/slowness when resizing or rotating bitmap images in CorelDrawX4 with SP2. That problem seems to be specific only for CorelDrawX4 and doesn't appear in other graphics-related programs. Uninstalling graphic card driver makes the problem disappear. The latest driver for the graphics card doesn't make any improvement though. Thanks for any ideas about possible fix.

Configuration:

Windows XP SP3

MBO Gigabyte GAEP45-DS4

Graphics card: Gigabyte GV-R485MC (1 GB)

CPU Intel Q9559/12/775

Ram: Corsair 8500 DDR2