i just opened a Cubase 5 (Mac) project in Cubase 6. So far all Vst instruments with it´s respective sounds were loaded and it works. I have a lots of modulations as automation there and somehow the chasing doesn´t work reliable.
It does not update the actual modulation settings when i´m auditioning parts directly somewhere in the song. By playing the affected parts and moving the automation data down and up again it recalls the modulation. All settings in the preferences are right and worked fine in Cubase 5.
Best - Steely M