Frequent Crashes - RDM stops responding

Windows 7 Enterprise x64

On a regular basis Remote Desktop Manager v5.8.3.0 stops responding.

Below is from the RDM logs:
[9/27/2010 4:57 PM]ERROR SILENT System.Security.SecurityException: Security error.
at Devolutions.RemoteDesktopManager.Business.FileAssociationHelper.Create(String extension, String properName, String contentType, String fullName, String iconPath, Int16 iconIndex, FileAssociationCommand[] fileAssociationCommands)
at Devolutions.RemoteDesktopManager.Managers.ApplicationManager.SetFileAssociation()
The Zone of the assembly that failed was:
MyComputer


The following is from the Windows Application Event Logs:

Faulting application name: RemoteDesktopManager.exe, version: 5.8.3.0, time stamp: 0x4c8795a8
Faulting module name: CliSecureRT.dll, version: 5.2.0.5, time stamp: 0x4c82951d
Exception code: 0xc0000005
Fault offset: 0x00001296
Faulting process id: 0x%9
Faulting application start time: 0x%10
Faulting application path: %11
Faulting module path: %12
Report Id: %13