You can customize the content in the column header through the headerTemplate option. Using the empty string will remove the content from the column. Please, check the following dojo - http://dojo.telerik.com/osAfO.
In the same dojo I have set the locked option for the first column, thus freezing the column. Also the editable option is set the grid, making it editable.
Please, feel free to change the dojo to the setup that you find problematic on your end. This way I can investigate the problem on my end as well.
Looking forward to your sample code.
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