Hi ,

 

Please try demo http://www.cutesoft.net/example/editRTF.aspx, does it get the same issue?

 

If the demo works for you. Please download the  package below, you should find the source code in it. The example page name "editRTF.aspx".

 

http://cutesoft.net/downloads/folders/21904/download.aspx 

 

And the link above is the latest version too.

 

Regards,

 

Ken