Problem locating plug ins

[Chrisostomos]

Can anyone help with an plug-ins issue? I recently upgraded to Pro Tools 8...I've loaded a session I started yesterday (working fine), but today when I open it my tracks aren't sounding because I get an error:
THE FACTORY CONTENT WAS NOT FOUND:
//Applications/Digidesign/Pro ...eative Collection/Mini Grand?
PLEASE LOCATE THE CONTENT FILE "Mini Grand.big"

I'm trying to use the mini grand plug in of course. When I go to search for it I go to my HD: Library: Application Support: Digidesign: Plug Ins

but all of my plug ins are greyed out and I also see that the mini grand plug in has an extension of .dpm

any thoughts?
Chris

[Avid]

If your Pro Tools 8 is properly installed on a Mac system, the Creative Collection content would not be in your plug-ins folder, it would be in the location that you listed above in the error message:
startup drive/Applications/Digidesign/Pro Tools Creative Collection/Mini Grand/Mini Grand.big

[Chrisostomos]

Thanks a lot! Also, can you tell me where I should permanently store my other plug-ins (MOTU's "Ethno" and Sonik Synth)?
Thanks,
Chris