Editbox, Read-Only, Display Screwing up when scrolling

[pbrama]

We have a multi-line editbox with scrollbars. Because it is used to only display a message, we have it set for READ-ONLY. Problem is, when you scroll it, the lines start overlapping. If you click&drag through the messed up text, it appears.

I turned OFF the READ-ONLY, and it works just fine.

Is there a problem with READ-ONLY and scrollbars?

Attached is a picture of the READ-ONLY messed up display.