On occasion you may find yourself unable to scroll past 25 or 50 Contacts:
The scroll bar will simply not move any further.
To resolve this issue you simply need to zoom out on the TextUs tab.
To adjust the zoom on Chrome, select the three dots on the top right of your browser. You can then click + or - to adjust the zoom to 100%.
Once this is done you will see the scroll bar allows scrolling!
Should the problem persist you may need to manually adjust the resolution of your screen. Your IT Department should be able to assist.