maybe this will help -
http://support.microsoft.com/kb/827745

http://support.microsoft.com/search/...%3D1033&mode=r

Do you have the image {a copy} saved in a separate file so you can play around with it now?

here's some free software for image management - not sure which one would be best for you - might have to try the top rated ones to see if they do what you want.

http://download.cnet.com/windows/med...g=ltcol;narrow

I have Picasa3 and didn't see a dpi setting on it.