Maybe I made something wrong when installing client?
But I have the same problem on two networks.

Using Workstation with german Windows7 Enterprise, install the most
actual Netware Client.

Logging into Edir and mapping drives in LoginScript works fine.
After login mapped drives are available in the explorer.

But several programs (for example installers) doesnt have access to
these network drives (or loose them after start).

Also several applications like word have problems saving files on
network drives. First try gives an error that there are to less rights
for saving. Acknowledge these popups and try a second time gives the
message, that this file already exists and if want to overwrite. Use
answer yes will save the file.

Any ideas what's going wrong?