How can I use two NotifyIcons in C# without the second one disappearing when i hover the mouse over?

I Have a VS2008 app that needs to display two notifyIcons in the System tray. One is the main application icon, which allows quick access to the GUI. The second is a "new message" icon, which is displayed when a new message arrives, and hidden when the user开发者_StackOverflow社区 double-clicks on it, much like the new Outlook mail message icon.

The problem i am having is the second message icon is hidden whenever the mouse is moved over the system tray. The first icon behaves as expected, and remains in the system tray while the application is running.

Any ideas?

Thanks - this was partly due to windows glitch and a bug in my code. Seems the icon will not stay visible when showing a baloon tip - it must be forced visible before showing the baloon tip. The icon did not refresh until i moved my mouse over the tray.