I'm using Illustrator CS3 and Adobe Professional 8.0. on a PC.
I've turned the type into outlines and when I display the PDF file, the "l's" (els) show up differently.
I tried this with two different typefaces - Myriad and Arial - same problem.
It appears fine in Illustrator.
Adobe Professional 8.0.
I assume you mean Acrobat Professional 8.
What you are describing is a display issue several versions of Acrobat suffer from. There's nothing you can do about it except view the PDF at 100%. The extra thick i and l characters won't print that way.
I just tried viewing at 100, 150 and 400%.
The issue somewhat resolved at 400%.
I'm extremely concerned about submitting this to a printer.