We regret to inform you that based on the fact that DOS is not a supported platform for the D2500HN, the support we offer is limited:
The issue you are experiencing could be a compatibility issue with the mentioned software platform or the software application you are using.
When your's lazy *** make a drivers for graphics Intel GMA 3600/3650 for windows 7 x64 ??? WTF ! Where the support ?!?
or buy my win 7 ultimate X64 ! ! ! and other staff for x64 ....