[SCWatson]

If you have CS5, be aware that Photoshop doesn't fully support all of the previous plug-ins - especially if you are using the Additional Plug-ins folder through preferences.

Mine was crashing about every third save when saving for the web & devices after I checked the Additional Plug-Ins folder. It locked up, and I'd have to force quit, losing any unsaved changes to what I was working on.

Unchecking this option in preferences (and restarting) allows the program to work properly when saving for the web and devices.

It took me about a week or so to figure this out, as Adobe doesn't really consider it a "bug" per se - but it is annoying as all hell if you have plug-ins that you use and rely on from earlier versions.

Best,
~Shane