Yes. I have the file and it is usable.
I can duplicate your problem. It appears you have set your explorer to display shallow instances. This method was discontinued in early 2006. I am currently testing to see if the workstation and application databases will convert to 2.15.0.
To remove the problem of the explorer tree from disappearing, you can run the following script from the workstation table by selecting Tools > Script Evaluate:
nv2.exe > system > database_id_set.qw_script
The above script will change the database ID of the application database and allow for default setup of a new window explorer to take place.
I’ll know more about the conversion of both databases by Monday.
Regards to All,