hey guys im new to the forums here and i've run into some trouble....can any one tell me how to change the pen assignments so that all colours print black....i have tried using the monochrome.stb but nothing seems to work thx....this is for autocad 2010

Go to your plot style manager you can do this thru control panel and you can either create your own plot style or double click and modify one to your preferences. My suggestion is to create a plot style name it black & white and make all 255 colors plot black.... When you go into the plot style you will see how to do it... Very user friendly... I hope that helps you...