Just raising this for other ArchiCAD users. Freezing Issue, but work around after
The stats first
ArchiCAD V12 (2675 AUS FULL)
Adobe Acrobat 8 Professional 8.1.6 (I know 9 avail, but waiting till next time I have excess money in pocket)
Windows 7 Eval Build 7100
Intel Q9400 2.66GHz Quad Core...