Windowed Mode

theonemoment

So today I felt like changing to windowed mode. I've done it before but I changed it back when you guys made it so that the setting also affected me in game (was hard to get used to and didn't feel like adapting to it). Today I felt like giving windowed mode another shot so I went over to the options menu and saw that I couldn't change to windowed mode. I tried changing the resolution to every from 800x600 to my laptop's resolution (1366x768). Nothing would allow me to turn on windowed mode. I have a screenshot of what I'm talking about here. This isn't a deal breaker for me and I'll enjoy playing this game even if I have to play in full screen but I am just wondering if there is any way I can try out windowed mode again. I have already reinstalled crossfire if you're wondering.

My system:
Inspiron n5010
i3-370M @2.1Ghz (under clocked)
Intel HD graphics
4 gb DDR3
500 gb HDD
1366 x 768 display
WIndows 7 SP1

Yes I know this is a 6 year old laptop but with l̶o̶v̶e̶ ̶a̶n̶d̶ ̶k̶i̶s̶s̶e̶s̶ proper care and maintenance, it still works very well.