Our application has a base panel that fits the screen and child panels that are loaded into it. The redraw problem only happens when loading a child panel. When you do this, all child panels are usually blank - sometimes you can see the child panel's top bar. If you can find the top bar of the child panel and double click on it, the child panel redraws properly but the background does not. You can then move that panel around and the background redraws only where the panel has been moved to. He also says that minimizing the application and bringing it back will (2 out of 5 times) bring up a blank screen and, again, if you can find where the top bar of the child panel is supposed to be and double click on it, the panel will redraw. T
his will happen after he has been using the software for some time. Then, he won't be able to reproduce it again for a while. It leads me to think that some event queue that handles draw events is losing some of the event items, then clears out and is able to handle the events properly again.
We did manage to get this to happen at one point where we allow a new users to login, then we clear off tests, and reload our main panel. I was watching memory usage and there was no significant spike, but the CPU maxed out at 100% for a second or two, then the blank or incomplete panel came up.
Judy