That's where I was messing up. I had placed the icon folder in the "C:\Program Files\Weather Watcher Live\Skins\Icons\" folder. Thanks for clearing that up.

I did notice that the icons don't animate in the system tray tooltip window. I take it that is by design?

That's a limitation of the image controls I'm using.

Ah, OK. I ended up not using them anyway as the images were cut off in the bottom row for the hourly forecasts. Looks like they might need to be resized there.