Stat 6.1.0 hf-c has addressed the issue below:
New option for Windows Client to use RTE component for CSR Description/Resolution from Central Agent (Issue ID 3612)
* The new option can be used for Stat Widows Client machines with high security settings for Internet Explorer. This option will switch the location of web-based Rich Text Editor (RTE) component, for CSR Description/Resolution, from a local file to Stat Central Agent. By switching the RTE component’s location to the Stat Central Agent, this will allow client machines access to Stat’s CSR Description/Resolution component via Internet Explorer’s Trusted Sites security settings. By default, Stat Windows Client uses the component locally. To change the option, modify stat.ini by adding the flowing line in [Options] section: RemoteWebControls=Yes. In Internet Explorer Security options, add Stat Web Client’s URL to Trusted Sites.