Article ID: 111716, created on Jul 25, 2011, last review on May 9, 2014

  • Applies to:
  • Helm 4


Control Panel appears grayed out, so any user input is unavailable.
Browsers: Safari, Google Chrome, Konqueror.


The problem is caused by JavaScript errors.


The solution is available for the version. You should update Helm to 4.2.0 before applying the patch. For instructions on how to perform the update, see .
Replace C:\Program Files\Parallels\Helm4\ControlPanel\ClientScripts\fog_screen.js with the attached file in the affected Control server.

Additional information

The fix is included into Helm 4.2.1. See Helm 4.2.1 Release Notes.


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