One other thing to watch out for. If the selected
Scene has (Modified) in front of it, the resulting
image will not match SU because some render setting
in LO changed causing it to be different than the
Scene in SU.

A free workaround would be to take the model containing the scenes you got, save a copy of it, delete everything, then import your other model and position its origin to match.

See this thread but with no real conclusions. http://www.sketchucation.com/forums/scf/viewtopic.php?f=15&t=12349&p=89084&hilit=kenny#p89084

I also get frustrated with it. It's usually on large models printed at A1 or larger. Daniel is right however, Layout will print out ok without the texture issues.

If you do still use Sketchup directly I've found that Adobe Acrobat is the worst culprit. I also use Cute PDF and PDF Creator. They work more often than not. Also in Advanced Preferences print settings try ICM Method: handled by printer, ICM Intent: Graphics, Advanced printing Features: Disabled. I don't really know what these are meant to do but through trial and error have found they work more often.
Kenny