What engine are you using? (You should have posted in the Support forum for that engine - Tech Support is when you can't actually get the editor installed or running).
I ask because, even though your profile says you primarily use Ace, a lot of people use more than one maker now, and what's in their profile is not always the engine they're asking about. Plus, I believe there is an issue with scrolling text in the latest MV version.
Also, when an event isn't working right, a screenshot of your entire event window will help us track down the problem WAY more than a description of what's happening. So if you're not using MV, please give us a screenshot of the event.