On Land

Environment Information
At Rill Architects we run ArchiCAD on Mac OS X. If you work at Rill, this is your stuff. If you don't, but you work in ArchiCAD, you may find something interesting. Anybody else, I don't know.

This is one of the stock OS X troubleshooting tips. It does actually solve some problems, and it doesn't do any harm.

Open the Disk Utility application in Applications : Utilities.

Select your hard disk name in the left panel. Select the First Aid tab in the right panel. Click the Repair Permissions button at the bottom.

It will take about 5 minutes, depending on the size of the disk. When the repair finishes, quit Disk Utility and restart the machine.