I can't enable the Log Analysis Agent
There are two common causes of this problem. One, you don't have at least Designer access to the database. By default, manager access is granted, but the ACL on the Analyzer database may have been changed. Check to see that you have at least Designer access to the database.
Second, the server that you are trying to schedule the agent on may not have the rights to run the agent. The Log Analysis agent can run with Restricted access if processing the hits from DomLog.nsf, but requires UnRestricted access if processing the Text Files. Make sure that the server document for the server you are trying to schedule the agent on has either the server name or a server group that contains the server name in the "Run Unrestricted Agents" field in the Agent Manager section. This will give the server rights to run the agents. Without this permission, the server will not be able to run the agents and you will not be able to enable them. Also, any changes made to the Agent Manager section of the server document may not take effect immediately, and may even require the restating of the Domino Server.
If both the server and your client's ID have the proper rights, you should be able to enable the agent. Make sure that the scheduling information and the server that the agent will run on is correct. If it is not, the agent may not run when expected, if at all.
To check if the agent is enabled, go to the server console and type "tell amgr schedule". This will bring up a list of all the agents that are enabled on the server. This list may not be immediately updated when you enable the agent. If you do not see the agent you enabled in the list, wait a few minutes and try again.