Let me help you. Are you familiar with concept of "voter intimidation" and why it doesn't work at polling stations?
Scenario: You are a part of a company. Your boss tells you to vote a certain way or face problems at work. You have no other good places to work and you have no way of proving he said that.
In current situation, this is impossible for said boss to enforce. You can tell him you will vote the way he wants, and even if he shows up at the polling station with you, there is no way for him to check which number you actually wrote on the ballot. Result: Voter intimidation not a viable tactic.
In a case of electronic voting from any PC terminal, all said boss needs to do is stand next to you as you vote. Result: Voter intimidation a viable tactic.
In a nutshell: electronic voting from uncontrolled environment has severe problems because of lack of anonymity compared to voting at polling station. If it presents no significant tangible advantages, it should absolutely be scrapped to avoid increasing democratic problems while presenting on clear democratic benefits.