Problem login in to a Win XP workstation that uses NetWare Client

Windows 2003 Active directory and domain controllers.
NetWare 6.5 File Server.
windows XP SP3 Workstations

Our workstations log in to our Windows and NetWare servers at startup and map drives to different servers. A couple of days ago, some of our XP workstations seems to have problems login-in. When we press on Ctrl-Alt-Del on the NetWare Client login window, we get a message:
"A NetWork Service Failed to Start. Please Check your event log for detalis". In the event log we find this message:

"Faulting application loginw32.exe, version, faulting module unknown, version, fault address 0x00000000."

Wondering if anyone has encountered this problem

Who is Participating?
psyche6Connect With a Mentor Author Commented:
Here is what I tried and worked for me.

Firstly I did try removing the old NetWare client and installing the latest client. Did not work. I tried different version NetWare clients. Did not work.
Not sure why/how................but what i did and worked on two computers so far:

1.- Installed SuperAntiSpyWare and run a complete scan.
2.- Cleaned the machine and rebooted.
3.- Installed NetWare Client 4.91 SP5, without removing the older version.
4.- Rebooted and it started working.

I think I just got lucky on this one.

Thanks for your inputs.
Check if there is an update to the novel client available from novel, and try it with that. If that doesn't help, check if any windows-updates may have brought up the issue, and use system restore to return to a stage before this happened.
Davis McCarnOwnerCommented:
Version 4.80 is a bit old.  You can get the newer version here:
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