You may use the following fix:
1. Create a new CSS file (for example Fix.css) in yor project, and paste the following CSS in it:
padding-left: 4px !important;
2. Set DialogsCssFile="Fix.css"
to the server declaration of RadSpell, and make sure you specify the corect file path. This will load the fix file in the window of RadSpell.
3. Reload the page
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