I sat down yesterday with my new HP Photosmart Pro B8350 and I intended to have a "get aquainted session" and print my very first batch of photos with it. Even though the printer installed without a hitch and printed excellent test pages from the windows and HP software, it refused to print photo images! It goes through all the normal print dialogs and when I finally hit the print button the little printer icon appears in the Windows taskbar as it normally does, but then it suddenly disappears. The printer does not take up the paper from either the tray or by manual feed and there's no print job in the printer queue. And no error messages either.
I tried printing through Photoshop, Lightroom and directly through Windows XP. Same non-result each time. Going back to running a test print, it prints out a beautiful print every time with sharp images and rich color. And it continues to have no problem with text documents.
The end of this boring story is that I went online with HP support and after they had me run through all the same diagnostics I had already done on my own, they agreed that it is defective hardware and they are sending me a replacement. I'll keep you guys posted.
BTW... This is a brand new unit, not a refurb.

