My wonderful new Message Display program has now managed to keep going for a whole day. It is my first ever Windows Presentation Foundation (WPF) program and it is running on Windows Vista RC2 on the machine in my office all hours of the day and night.
Since the real thing is required to run for weeks, and any failures of the system will be very visible (and therefore highly embarrasing) I've embarked on this soak test. The program is running in "dog time" (i.e. around seven times faster than it should) so that the results are better than realistic. Later this week I might dare to go live with it on the big plasma screen.