FrameMaker converting quotes in text import

[Steve Rickaby]

I am using text imports of ASCII files in a book. These are source code examples, and contain straight quotes. When imported in FrameMaker on PC, the quotes remain straight. When I import the same files on Mac, the quotes become 'curly' typographer-style quotes, which is unacceptable. I have no idea why this is happening. I've played around with the settings for text import, but nothing seems to fix the problem.

This is a bit of a drop-dead problem for me, so any help would be most appreciated.

Mac OS X10.4.7, FrameMaker 7.0
-- 
Steve