Client Messing Up Screen Size.

Very sorry about the somewhat vague title, however, I don't want to put something in the title that isn't true.

First and foremost, whenever I start up the client (Hitting "start") my computer bugs out and the whole entire screen gets smaller. This doesn't just affect the DBOG client, it happens to my whole entire computer! Could somebody please assist me with fixing this, or is it just a problem because of my computer?

I'm running DBOG on a Windows 10 laptop if that helps at all.

I would provide screenshots, but the screenshot looks like the normal DBOG client when I look at it (so does that mean it's a screen resolution problem or something like that?).

Thanks, I'll try both of them.

The reason I wasn't changing any options in-game though is because I didn't think I would be able to see the options.