Tazz wrote:

I'm going to be reformatting and reinstalling everything shortly, and
I can't figure out how to stop BOINC from downloading new WUs. I have
the cache set for 0 to 0 days and it still tries to download new WUs.
I don't want to just detach from the project and lose the units, but I
really NEED to reinstall.

All help is appreciated.

</Tazz>

Looks like the following command should work, haven't tried.

-exit_when_idle    Get, process and report work, then exit.

The command line client has several options: 

-attach_project Attach this computer to a new project. You must have an
account with that project. You will be asked for the project URL and the
account ID.     
-show_projects  Print a list of projects to which this computer is attached.    
-detach_project URL     Detach this computer from a project.    
-reset_project URL      Clear pending work for a project. Use this if there is a
problem that is preventing your computer from working.  
-update_prefs URL       Contact a project's server to obtain new preferences. This
will also report completed results and get new work if needed.  
-return_results_immediately     Contact scheduler as soon as any result done.   
-run_cpu_benchmarks     Run CPU benchmarks. Do this if you have modified your
computer's hardware.    
-check_all_logins       If 'run if user active' preference is off, check for input
activity on all current logins; default is to check only local
mouse/keyboard  
-exit_when_idle Get, process and report work, then exit.        
-allow_remote_gui_rpc   Allow GUI RPCs from remote hosts        
-help   Show client options.    
-version        Show client version.