W-4 Calcluator Not Accepting Input

[JustinPinnix]

When I go through the W-4 calculator and get to the "Enter The Payments You've Already Made" screen, it has an amount filled in (which is wrong) and won't allow me to change it.  I click in the box and it won't take any keystrokes, nor can I delete what's there.  This renders the whole feature completely useless.

[MoniqueLO_]

If you are using TurboTax Online, you may want to try a different browser or try clearing out your browser's cache and cookies. Please see How do I delete cookies? and How to clear your cache for more information. 

If you need additional assistance please feel free to contact Customer Support. 

@JustinPinnix