Our HP 650c is not allowing us to plot full color boards. We continuously get through 75% of a plot or so and end up with the OUT OFMEMORY error message. Based on some research there appears to be a driver option for the plotter under the advanced tab to "process on the computer" memory. When I go to this tab that option is not available. We're running Windows XP Pro on a machine with ample memory to perform these operations. Any ideas out there? We can get blacklines out, but have multiple presentations coming up and going out of house for large format color at $9 a square foot isn't my idea of an acceptable solution.