please post a pdf somewhere for us to look at.
Here's a link to the page in question (although there are other pages as well):
What I found is that if I print to my main printer (HP 4300), the gridlines of the pictures in the middle of the page don't show up.
If I print to the Xerox 6360DT that I have, the picture shows up fine.
There must be a setting in the HP properties that's making it not work but I haven't been able to figur out what the setting is.
Well, just to add to my own post, I found that if I go into the printer settings, and change the "Advanced Printing Features" to Disabled, it then prints out just fine. If I change it back to Enabled, then the picture doesn't show up properly again.
I don't know if I'm losing anything else by leaving that disabled but it's got somethign to do with that setting I guess.