Please inform your programmers that not everyone has auto hide task bar turned on. It took me a while to figure out how to click on "continue" button that was hidden behind the taskbar. This was on credit card payment for state efile. But I seem to remember other windows with this same issue.
Programmer: To calculate the maximum window height:
auto-hide on: Screen Height.
auto-hide off: Screen Height minus TaskBar height.
was there a scroll bar in the right or left column? if so that's your clue that you are not seeing everything.
No there was NOT a vertical scroll bar. Originally, I tried to use tab to make the button active, but I didn't know how many tabs were needed as objects were hidden underneath the taskbar. You have a privary statement and some other doc to view and whatever. Finally, I put the input in the first EditBox and did a Shift-Tab to move focus to previous object. Then Enter worked. After that I figured out it was the auto-hide feature for the taskbar.