Upgraded my OS and Logic no longer sees my plugins.

[Exocaster]

I am a lazy ass and never bothered upgrading to Snow Leopard until earlier today; my band is collectively standardizing our systems.

Logic 8 on a Macbook Pro, used for live sequencing and DMX lighting control as well as a portable recording rig. None of my third-party plugins- both effects and software instruments- are accessible at all. Furthermore, it claims my Focusrite plugins (Saffire Pro) are not authorized for use on this machine. What could be the root cause of this and what are my solutions, save for a complete reinstall of everything? I would hate that very, very, very much.

Any assistance would be greatly appreciated.

 

[Exocaster]

I'd also like to add that the Audio Units Manager in Logic isn't functioning either.

 

[Exocaster]

Deleted my cache for AU plugins and all is well. It's not liking SVX, but I rarely use it these days anyway; I generally just mic a GK rig for either of my bands or take a straight DI and reamp through the aforementioned on demos.