Why does my TImage not display on Win2k?

Sometimes an image in the TImage component displays on Win2k and sometimes not. Sometimes
changing the size of one of 2 images on a form affects the visibility of the other image.
The form is displayed using LMD Tools' FormDisplay component.

This occurs using D4.03.

They display correctly on Win98 R2 and NT4 SP3.

Any ideas on how to make them appear?
Raymond Kennington