Screenshot app w/o rooting for 4G?

view story

http://androidforums.com – Hi Everyone! I've spent most of my morning today trying various screenshot apps that failed because my phone isn't rooted. I don't want to root my phone. All I want is to take a simple screenshot of my phone. Why is that so freaking complicated for HTC to provide to their customers? Can anyone provide info on an app that I can use that will provide ZERO headaches in installing that requires no rooting so I can take a simple sceenshot of my phone? Thanks in advance for your help! Denise (General)