Drop down mega menu – remove scroll bar & All categories option

How do I remove the scroll bar on the drop down mega menu? Also, how do I remove the All Categories options – I just want it to show my categories – no the “All” option.

Thanks

Hi

To remove the scroll bar add this css in theme panel > custom css: http://screencast.com/t/zIlZdT6vBO Also to remove All word please follow this link: http://screencast.com/t/N7mkW1gT3bA

Thanks!