I have a new Mac using OS X 10.6.2 and an HP Photosmart C 4680 printer. My problem is that, after selecting the numbers of the pages to be printed the result is that other numbered pages are printed. For example, I select pages Nos. 22 and 23, instead 20 and 21 are printed. The Hp techs advised me that the problem lies with Adobe Reader. Would appreciate help. Please keep it simple s I am computer illiterate.