destroying sessions

Hello, Just wondering if there is a problem destroying sessions in PHP 4.X with Win32. No matter how I try, I always end up with the following message: "Warning: Session object destruction failed in [php_file] on line [x]" This happens if I call session_start() before session_destroy(). If I do not call session_start() then it complains about not being able to destroy an uninitialized session. Or maybe I'm going about this wrong. All I want to do is after the user clicks "Log Out" have the session file destroyed. (I'm using the standard file sessions in PHP 4.) If it was a problem with PHP, then I thought that it would have been fixed with 4.0.3. I can try it out on Linux later (as that will be the production platform), but it'd be great if it worked the same way on Win32/Apache as well. Thanks, Matthew