On my old Mac running OS 10.4.11, using TeXShop 2.26 I would use the pstricks package to draw figures. In those figures I had neither tick marks nor tick labels. I have recently switched to a new Macbook running OS 10.82 and have downloaded the latest TeXShop 3.11. When I try to compile my old files in the new LaTeX everything works fine, except that my figures now show up with tick labels (not tick marks). When I rerun the same files in my old Macbook the tick marks do not show up. Can anyone please tell me what is going on? Is there a way I can remove the tick labels in pstricks? Also, should I be switching to a different graphics package?