Here is what I'd suggest as we put these two changes into the Novell client and solved a problem opening Access databases. Our client uses a program that has an Access database and for a long time, they would start the program and it could take 4-5 minutes to fully open/initialize.
With the following:
Novell Client Properties | Advanced Settings | File Caching (on by default) change it to OFF
Novell Client Prpperties | Advanced Settings | File Commit (off by default) change it to ON
Restart the workstation and test.
It changed our app start time to about 20 seconds from 5 minutes.
Scott