We have written a Windows application in C# .NET. It works fine, but once every couple of months, for no apparent reason, the GUI window will disappear while the app is running. The app keeps processing (we can tell from the log file it writes) and otherwise seems fine - it just that the GUI is gone. Very strange.
Does anyone have any experience with something like this? The app was developed with C# .NET v3.5. It is running on Windows 7. We did not find anything in the Windows event logs, etc.
Thanks very much.