Adobe, the 21st century and the Mac
What they wrote (Adobe Photoshop CS4 Read Me):
Spaces (Macintosh only)
We do not officially support the Apple OS X Leopard “Spaces” feature. If you are experiencing problems when using Photoshop CS4 and Spaces, please contact Apple Support.
What they meant:
Using (Macintosh only)
We do not officially support the Apple OS X “Using Software” feature. If you are experiencing problems when having an Adobe product and trying to use it, please contact your ass.
Evidence can easily be found here and there.