Can any one help with this ? We often have a problem plotting either single sheet or batch plots - drafter gets the error message "Unable to create colour palette" and then Autocad crashes. (Sometimes prior to that also may get the error message "The ISM context menu did not load") The workaround we have been using for single plots (once the error message has occurred) is to re-open Acad and the drawing , at the command prompt > colour >and then change from By Layer to By Block, and then after plotting changing back to By Layer. Currently not sure of a workround for batch plots. Regards DB