When I go to load a video on youtube or some other video that requires flash my monitor goes black and unresponsive.  I have reinstalled flash and checked my power settings, both seem to be working fine.  My computer is only a week OLD so I'm hoping its not a hardware issue.

Can anyone help? Ive been TRYING to fix this for a few hours now.I do hope its not a hardware problem...
What is the make and model of your computer? What Operating System are you using?
Does the issue occur in all browsers or in just one?

If you want to stress-test your system to check for errors you might want to use the following PROGRAMS:
IntelBurnTest for your CPU: http://www.softpedia.com/get/System/Benchmarks/IntelBurnTest.shtml Run it on Standard, 1024MB, for 10 passes. If your system GETS unstable in the process it will tell you.
Furmark for your Graphics card: http://www.softpedia.com/get/System/Benchmarks/FurMark.shtml Run the 720p benchmark. If your system gets unstable there will be artifacting on the screen or the picture will freeze.
MemTest86+ for your RAM: http://www.softpedia.com/get/System/Benchmarks/Memtest86-plus.shtml Run it for 10 passes. It will indicate if there is a read/write error if your RAM is faulty.
Other users have had identical problems to yours:
http://h30434.www3.hp.com/t5/Notebook-Display-and-Video/8740W-screen-goes-black-when-viewing-Flash-videos/td-p/912403 
http://www.tomshardware.com/forum/285700-33-screen-black-streaming-media-activity