Hi,
I am trying to create a Map in Arc10.1 (advanced license, SP1) and getting ver frustrated.

I have an mxd with a key map which shows 1:20,000 map grid and disctrict in BLACK. When I export out the PDF it shows as no color you can see faint white lines (see PDF: DMK_Operating_Plan_50k_TK) A coworker opens the same mxd and exports out the PDF and it shows perfect (see PDF: DMK_Operating_Plan_50k_EP)

Any idea what the HECK is going on? Almost like the black is inverting to white for some reason.. The export settings are identical between my co-worker and I.

I have no idea where to continue looking for a solution

Any Ideas? Please help..

Tina