This happened after upgrade to NetAvdantage 2013 from very old release (Infragistics2)
Fairly sure it is the text that has "slipped down".
Can I add a border below?
In case of upgrade, please refer to the following list of breaking changes for each version of the controls.
Regarding the border of the button tools, you can refer to the following forum thread, which has an example how to draw a border using the draw filter.
Should you have any further questions, please let me know.
Sincerely,Tihomir TonevAssociate Software DeveloperInfragistics