I have seen some of the mentioned for users.
What we have done,
For Lexmark printers we distributed the different files in Documents and setting\all Users\ *.gdl descrebing the actual Lexmark printers used
in the driver setting we removed the mark Update Configuration from Printer in the Configuration tab, as this only makes the driver ask the printer each time used, How are you configured? Unless your printers are changed, this status is prettey static.
This made the hell of a difference to the time users experienced before the change was made.