Try this way

 

1. Clean all content of css file "CuteSoft_Client\CuteEditor\Style\SyntaxHighlighter.css" and try again.

 

If it works, mean that the content cause this issue. you can remove the content one by one  to get the line wihic cause this issue.

 

2. If not, please create a page only contains CuteEditor and send the test page url to me. I will test it and get back to you as soon as possible.

 

My E-mail: Kenneth@CuteSoft.net

 

Regards,

 

ken