Internal Error 1816 in Module 1

I have looked for the links but can find no reference to this error. We are using Navision 3.70A DE on SQL 2000 via WTS2000. Any help happily accepted.

When an Internal Error belongs to Module 1, you can get the complete error message by typing NET HELPMSG “Error No.” in a command prompt. Doing so will give you the following error message: Not enough quota is available to process this command. See also this topic: http://www.mbsonline.org/forum/topic.asp?TOPIC_ID=345&SearchTerms=net,helpmsg

Thank you.