http://helpcenter.graphisoft.com/troubleshooting/setup/cross-platform-issues/#Custom_folder_icon_issue
AC18 and AC17 build 6004 no longer allow non-cross-platform
files/folders in BIM Server Libraries. Custom folder icons on Mac create
a file which i...
Sections/Elevations/Interior Elevations store their contents in the plan
file even if they are autorebuild type. So the more lines/shapes/etc.
they contain, the bigger the plan file. Layouts also store the contents
of the drawings, and also for every...
What happens if you delete the files containing known servers/users? Win
c:\Users\username\AppData\Roaming\Graphisoft\TeamworkInfo.xml
c:\Users\username\AppData\Roaming\Graphisoft\TeamworkInfo_v2.xml Mac
/Users/username/Library/Preferences/Graphisoft...