DraftSight flickering screen on Windows XP

Hello,
I installed DraftSight on a WindowsXP machine. The issue is that when I interact with the actual drawing area the whole screen flickers (even parts outside of the drawing area).

The machine has an ASUS M2A-VM HDMI motherboard, and I'm using the on-chip videocard, with the ATI drivers installed - and I think they are the correct ones because I took them from the ASUS website, in the section for this very motherboard model.

I tried to search the internet without finding any post or page related to this specific problem - at least, none with a solution - and I also skimmed through the settings of the program to see whether I could eventually disable hardware acceleration or the alike, again without any luck.

Anybody knows what's happening here or what I could do to further inspect the problem?

Thanks for your attention,
bests,
Francesco