Digital BW, The Print

Hi,
I've been lurking for a while & appreciate all the advice & help on this list.. I need a 
question answered-searched the archives but couldn't find the answer.I'm sure it's 
been discussed ad nauseum........


what needs to be done to switch back & forth between Photo & Matte Black under Mac 
OSX?.I've heard it said that you need to delete,then re-install the driver? everytime? 
seems extreme.....as it is,I get a "printer stopped" error msg. upon switching.Re-
booting the Mac & turning the printer on/off doesn't seem to get it.

Thanks in advance for a solution!

and everyone have a *great holiday*

Robert