I don't know laptops, but have you tried those yet?
Assuming you are using Windows XP, (you didn't say), go into Power Options, (either from Start > Control Panel > Performance and Maintenance > Power Options, or right click any empty part of your Desktop, select Properties, then Screen Saver tab > Power settings button), and make the necessary changes there.
Howdy all!!! I've got a question, which hopefully someone can answer for me. I was wondering if there is any way to keep a laptop from going into standby mode when the screen is closed. (since I'll be using a larger monitor). Thanks!!!