So.....here's a GS link that a fellow Archicad-guru pointed me to.
it's got the option for the user to be able to download below AC10 libraries.
I suggest to all that you do this.
Seems the Libraries in prior version to below 10 have been made into PLA files of which you can actually load a PLA file into your project if you were getting the "dots of death" when trying to open an earlier version AC.
http://www.graphisoft.com/downloads/library/usa.html
...Bobby Hollywood live from...
i>u
Edgewater, FL!
SOFTWARE VERSION:
Archicad 22, Archicad 23
Windows7 -OS, MAC Maverick OS