sirricko

Seems Autodesk products such as Autocad and ADT 3.3 cause this "white hole". I had the same problem and deleted Autocad and the gap closed. Gap must be needed or it's a bug of some sort. There may be a registry fix. I found some discussion at this Autodesk Forum. http://discussion.autodesk.com/thread.jspa?threadID=366731 Good Luck! Sirricko