I'm at a total loss and hoping someone on this forum might have a direction they can send me in 
I've been fighting with a lab of 19 imacs for two months now... (indigo and snow versions)..... they have stopped seeing printers in the chooser, or they will pick printers at random... there are about fifteen printers that should show up, including the two in the lab... but at most three will show randomly and they will never be the two in the lab that I need.....
I've tried:
a clean install of the imac
updating the imac from 9.1 to 9.2.2
using desktop printer utility to add printers both using appletalk and the LDR where you enter the printer IP address... this second option lets me choose the drivers and put in the IP and save the new printer to the desktop giving it a name... or so it leads me to belive... but after I click save and the window goes away I'm back to the desktop printer utility window... so I try to close that and it asks me to save changes to the printer I just added... so i do (or don't depending on the attempt) and look for the printer it "just made" and there's nothing... if I open a program to try printing it hissy fits and declares I need to open chooser and choose a printer....
I've switched the printers on their ports on the switch....
switched cables....
norton defragged the macs
rebuilt desktop
and right now I've run out of ideas....
these are all in a room with the printers (hp color laserjet 4550 and hp laserjet 4050 both networked versions) and worked fine up until a few months ago.... the switches they were on in the room were cabletron switches but now they are cisco catalyst 2950 and 3560 switches.... which then fiber run right to the main closet.... but the printers are on the switches in the room, one on a drop that goes to the switch and one plugged directly into the switch... computers are all on drops that go to the switch...
so I'm out of ideas and could use any ideas... can it be something with the 9 level OS not liking the cisco switches? has that happened to anyone? and it's so random... with four or five computers seeing the printers and actually printing... the most stable ones anyhow... but they still loose it now and then... the rest are just plain unstable for finding printers....
I've been fighting with a lab of 19 imacs for two months now... (indigo and snow versions)..... they have stopped seeing printers in the chooser, or they will pick printers at random... there are about fifteen printers that should show up, including the two in the lab... but at most three will show randomly and they will never be the two in the lab that I need.....
I've tried:
a clean install of the imac
updating the imac from 9.1 to 9.2.2
using desktop printer utility to add printers both using appletalk and the LDR where you enter the printer IP address... this second option lets me choose the drivers and put in the IP and save the new printer to the desktop giving it a name... or so it leads me to belive... but after I click save and the window goes away I'm back to the desktop printer utility window... so I try to close that and it asks me to save changes to the printer I just added... so i do (or don't depending on the attempt) and look for the printer it "just made" and there's nothing... if I open a program to try printing it hissy fits and declares I need to open chooser and choose a printer....
I've switched the printers on their ports on the switch....
switched cables....
norton defragged the macs
rebuilt desktop
and right now I've run out of ideas....
these are all in a room with the printers (hp color laserjet 4550 and hp laserjet 4050 both networked versions) and worked fine up until a few months ago.... the switches they were on in the room were cabletron switches but now they are cisco catalyst 2950 and 3560 switches.... which then fiber run right to the main closet.... but the printers are on the switches in the room, one on a drop that goes to the switch and one plugged directly into the switch... computers are all on drops that go to the switch...
so I'm out of ideas and could use any ideas... can it be something with the 9 level OS not liking the cisco switches? has that happened to anyone? and it's so random... with four or five computers seeing the printers and actually printing... the most stable ones anyhow... but they still loose it now and then... the rest are just plain unstable for finding printers....