I’ve been developing a Windows Forms application with a Windows Media Player COM embedded into it. Normally, it looks like this:

Today, I opened the program on my laptop, and got this instead:

Why are some of the elements of my program resizing when run on a different computer? How can I fix this?
Anchoring is what is causing the media control to mis-shape itself. You currently have the control anchored to Top|Right.
What you need to do is drop the Anchor settings on the media control – put the control in a panel and set the DockType to Fill; then Anchor the panel – Left | Top.