## Symptom

- Part or whole of the surface window is displayed black
- Black strips in the drawing content region when the surface window is resized to full screen

## Platform

Windows NT4.0

## Suggested Fix

- This problem only occurs in Windows NT4.0. The only complete solution is to install Windows '95 or '98'.
- If part or whole of the surface window comes up black there is no known fix for this problem. We have seen that this problems sometimes disappears when the computer is fitted with more memory (> 96 Megabytes) but we have no consistent fix for this problem. This problem does not appear under Windows '95 or '98.
- If when the window is resized to full screen size a black bar appears vertically or horizontally around the edge of the screen there is no known fix for the problem. A work around is not to resize the window to full screen (it does not appear for windows smaller than full screen). This problem does not appear under Windows '95 or '98.