I'm testing right now the second Release Candidate of LyX 1.6 in Windows XP (Pro SP3) and when I try to export the document to PDF get the following message:
"No information for converting pdf3 format files to pdf. Define a converter in the preferences". It's strange as I never have this problem before and v1.5.6 still export the file with no problem and as far as can see the parameters are equals. I've already update MiKTeX, reconfigure LyX and were no-problems during the install, any guesses?
