My window is too large and wider than my screen. How to I resize it back?

Hey leo! Thank you for your wisdom. Heres a new one! I have same problem, but the Alt +Spacebar and up down arrows will get me to the place where i can resize the window, however when i touch the screen with the mouse ANYWHERE it automatically puts the mouse to the center of the window at the top and i cant see the bottom anymore. I have XP and a small 8.9" screen. No other programs are doing this just one called Mixxx (Dj sofware) HELP!

when i open itunes the screen is to big i have windows xp

Thanks Leo, this cured my problem which was really annoying me for the last few days.

The post from Brendon fixed my problem, someone had changed my zoom level in the bottom right corner of my page in Internet Explorer. Thanks Brendon

Hey Leo
You solved my problem. Many thanks
Bruce

Hey, it's not working for me. I have Windows 7, I want to play the game 'metin2' but I the screen is too large for my laptop.

It only happens when I play metin2. And I can't press Alt + Space when playing it :S. Hopefully you know somehow I can change how big the screen is or something?

Thanks, Noah.

Great, fixed a problem that had been worrying me for years.

Thanks Leo! Fixed my too-large window problem!

Regards,
Dan

I did alt+space bar while playing a game on XP but the 'size' option will not work, it is coloured grey instead of black( which means I cannot click it obviously). Please help me on this,
Tom