First of all whats with everyone calling it DPI!!!!!!!!!!! Dots Per Inch!!!! This is only used with ink jet printers and old scanners!!! Why u ask, because Dpi is measured 1/300th of a pixel!!!What we are discussing is PPI. Pixels per inch. Pixels per inch refers to how we see an image on a monitor. So what this means is: DPI & PPI are like a sock and hat. They both fit on a human but, you dont wear a sock on your head unless your an azz, (catch my meaning I hope). Sorry for being so blunt about this but, I see it all the time written in these colums in regaurds to the mass confusion of DPI & PPI. Now to the topic at hand, yes you screwed up, however #1, genuine fractals will certainly do the job,( may need tweaking of - course ), however you probably dont have that. #2, You can try resizing it to 300 "ppi" with the resample turned on. Convert the image to Lab mode and select the channels tab and then select the lightness channel. Run the unsharp mask filter with a radius of no more than 1.2. You can adjust the "amount" and "threshold" till it looks good. Remember this, the sharpining will look better when printed, then seen on screen. So dont be shy with the "amount" setting, but dont over do it either. This is a short cut, and may not work depending your project. For future Reference you shoud always ask your client what formats and printing are they looking to do. I highly recommend conntacting their printer to see what CMYK work space they use as well as, what LPI their using. Most professionally printed poducts use LPI rather than "DPI" because DPI only refers to ink jets printers, which in turn means "shitty azz cheap printing".