My Photosmart 3210 has decided that I can no longer use custom paper sizes. I used to be able to put in any custom paper size I wanted when I was using an older computer with Windows XP. I now have an HP Touchsmart all in one computer with Windows 7 64 bit. It works just fine as long as I use a paper size that's listed but as soon as I try to use anything that's not listed it says there is a paper size mismatch. Also, I used to print from Word 2003 and I'm now using Word 2010.
Any help will be appreciated.