InDesign CS2 PDF Export is Screened

This problem just started happening to me last night.?All solids are appearing in PDFs as screened, however when I pull the PDFs I create into Illustrator to check them, they are fine.?Please help!?I usually export as press quality and a preset I made called press quality native color.

Thanks!

InDesign CS2 PDF Export is Screened

I forgot to mention that when I print to Acrobat from InDesign, everything works ok...just have a problem exporting to PDF (screened) thru InDesign.

thanks.....

InDesign CS2 PDF Export is Screened

Reader or Pro? Do you have output preview turned on? Does the simulation space match the document?

That's odd. We've been having a similar problem recently, where plain black text in an ID document (CS2), everything black only, is sent to plate, and the solid blacks are screened. Not just text, but line-art as well. Current workaround is to print separations and print black only, which fixes the problem. What I can't work out is why it's just some documents. We do a lot of routine, black only printing and can't find any difference in how the documents are constructed or printed.

It is screened when I print it out thru Preview on my Mac also thru Acrobat Professional.?When I import the PDF into Illustrator and print it out...everythig is solid (correct).?I don't want to go thru the extra hassle of printing thru Acrobat...just want to use export to PDF from InDesign as I was doing prior.

Also, if I open the screened PDF in Illustrator (where it is solid) and re-save as a PDF, it becomes screened again!

Help:(

That might be an issue with your RIP driver.....?Re-install?

BTW, I just re-installed the whole CS2 suite...still having the same problem....