Table rules randomly dark in pdfs

[Chen, Loretta]

Hi,

We just changed our tables from just header rules to column and row
ruling. And now we're making pdfs. 

Some people's pdfs have random heavy ruling in the table rules. They are
absolutely fine in the frame file. And if you increase magnification to
200% the rules look like the same weight in the pdf, but up until then
-- bad random dark ruling.

We're on Frame 7.2, distiller 8, using our own joboptions. We can't
figure out what's different from machine to machine. 

Bad ruling appears for both folks that are doing a Save as PDF and folks
that print to postscript and using the distiller to make the pdfs. 

And it also works fine with people using both methods of creating pdfs.

It also works & doesn't work on Windows XP and Windows 2000. 

(I had them try opening all book files when saving as pdf, and
uninstalling any earlier versions of distiller -- no change in
behavior.)

Anyone have any ideas? Maybe it's the distiller, but I can't find any
useful information?

Thanks,

L.