Search the archives of this forum. I created a utility you can use to detect the display resolution at startup and with that you can launch a different EXE for each resolution - including a "default" for resolutions you don't handle, or can't incorporate (a little future proofing). That gives you a few options. You can republish your project at different resolutions or you can use a screen resolution changer to force the resolution you want. Both of the tools I wrote are free and the posts that mention them will have download links.