Upload & Sell: On
Thanks Jim. Yes, I've seen Steve mention that it works for him.
I think I found the problem. I didn't realize that the integrated graphics on the Intel chip were critical, even though I also have the nVidia graphics card. Turns out if I disable the integrated graphics, Photoshop CC 2014 works.
Unfortunately the latest driver from HP is from 2012, and the newest driver from Intel won't automatically install because it's not certified by HP.
I think there is a work around for that, but at least I'm pretty confident I've narrowed the problem down to the integrated graphics driver.
OK, enough of this computer stuff for now. It's a nice day and I have some gardening to do.