install scripts does not

Install Scripts for a Virtual Domain, from Available Scripts, results in no output, no error message, seems to restrict furthur use of VirtualMin until logout and login is repeated.
Reproducible, within the GUI, however, manual install of the same script from the command line succeeds.

CentOS Linux 4.4
Webmin version 1.341
Virtualmin version 3.39
Client: Firefox 1.5.0.11

Status: 
Closed (fixed)