[Samba] Printer driver problems...going live tomorrow

[Tim]

Hope someone can give me hand with this. We have 2 sun solaris 8 print servers 
running Samba 3.0.2 in a veritas cluster (active/passive).

To make a long story short, we've tested everything except some new printers 
that have showed up. These are HP Laserjet 4300's. We tried uploading the 
windows 2000 and the windows NT 4.0 drivers within the windows gui 
(\\printserver\printers, right click on the printer and choose "shared" and 
then choose "advanced" and then select the correct driver (latest PCL6 driver 
from HP's site). 

This works fine. The driver is uploaded to the sun samba server and it pushes 
down the driver to the 2000 client fine and works. However, when we click 
on "share" and "additional drivers" and click on "windows nt and 2000" we are 
prompted to supply the location of the driver. We select the NT driver location 
and get this:

"The printer driver you selected is either not compatible with your current 
version of Windows, or it may not be available. Select a compatible driver from 
the list, or contact your administrator for help."

If I choose the 2000 driver here instead, it comes up with the digital 
signature popup and seems to upload the drivers fine....but the association 
doesn't stick and the NT driver is not downloaded to clients. 

This is not a problem with ANY other printer model so far (8100, 8150, 8000, 
4000, 4050, 4100, 4600, 5n, etc...) Any help is appreciated.

Thanks,
Tim