Cannot print and find localspl!SplSetPrinterDataEx

Hi,

The print server is running on W2K server SP4 with latest HP printer PCL 6
driver.
Client is Win XP Pro SP2.

Occasionally, I can't print but get the following message:

The application, C:\WINDOWS\system32\spoolsv.exe, generated an application
error The error occurred on 04/12/2007 @ 14:06:09.721 The exception generated
was c0000005 at address 75BC7140 (localspl!SplSetPrinterDataEx)

Meanwhile, it always show following message when I access printer property:

Printer Driver HP LaserJet 8150 Series PCL6 for Windows NT x86 Version-3
was added or updated. Files:- UNIDRV.DLL, hpzpi4wm.DLL, HPC81506.GPD,
UNIDRV.HLP, hpc81506.xml, hpzsc4wm.DTD, hpc8150c.ini, hpzui4wm.DLL,
hpzpe4wm.DLL, hpz6r4wm.DLL, hpz6m4wm.GPD, hpzsm4wm.GPD, hpzst4wm.DLL,
pclxl.DLL, pjl.GPD, pclxl.GPD, HPZHL4wm.CAB, STDNAMES.GPD, hpzls4wm.DLL,
hpzss4wm.DLL, HPFIE4wm.DLL, hpzst4wm.dll, hpz3c4wm.dll, hpzur4wm.dll,
UNIRES.DLL, UNIDRVUI.DLL.

Any idea?

Thanks,
Alan T