Some simple code I've written works well on my test (Vista) machine and on every XP machine I've tried. However several Vista machines are having issues displaying the balloon popup. The function call to Shell_NotifyIcon never seems to fail, but nothing appears. I've checked their HKCUs for the EnableBalloonTips key but it does not even exist in the reigstry. The code is very simple and I've reached an impasse. Interesting, some other applications do manage to produce popups, but they may just be a custom replacement window for the standard balloon tip. If anyone has any comments or suggestions, I would be very grateful. Thanks! -- Adzm
