I want to create a textbox/label to display input/output from a serial connection. This program will be running over long periods of time, and since I don't want massive memory usage, I'm periodically reducing the length of the textbox content when it reaches a maximum value. Unfortunately, I've found that using the substring method causes a flicker, as the program redraws the entire content of the textbox. Basically, what I'm looking for is the opposite of the appendtext method for textboxes. If you help me out on this one, I'll totally be your best friend.