Having compiled a program using OpenCascade on Win2000. Everything works as it shoudld. The views draw and refresh at the right times.
But when run on WindowsXP - using a projection screen, the windows drew but did not update on moving, panning or zooming inside the projected disply. If the window was moved off-screen and moved back to the active projection area - the the correct view was displayed. Is this an open cascade viewer error, programming error or an XP / Driver issue.
Thank you for any help.