We are getting a btrieve error #21 on a workstation trying to run a dos accounting app. It has worked fine until we switched to pervasive SQL 2000. We have the app on the netware 5.1 server with patch 2a on it. Have SQL 2000 on the server and pervasive on the client. We get the error when trying to close month end on an accounting app called AMSI. Can the client or server be adjusted to alleviate this error? I have BTRBox95 loaded also. Also use Bdosstub loaded on the client and not BTrieve or Brequest loaded.