ok so i have seen alot of posts tallking about a similar problem but mine is a little different. i am trying to print to pdf from CAD, my drawing has an aerial in it thats on a plottable layer, when i do the preview it shows the image but when i open the pdf the aerial isnt there. this is a problem that just started happening when we upgraded to windows 7. I am running civil 3d 2010 and windows 7.