web_js ERR undefined() in zm log and web_php undef in syslog

[attilahooper]

Zoneminder installed on top of Drupal 6. I've played with the htaccess and apache.conf files to no avail.
Edited for clarity:

When opening pop-up Log window:

web_js[29143]: ERR [undefined - ()]
http://xyzxyz.com|1327495832|page not found|192.168.1.3|http://xyzxyz.com/css/spinner.css|http: ... pinner.css

only this error when opening in new tab:

http://xyzxyz.com|1327495832|page not found|192.168.1.3|http://xyzxyz.com/css/spinner.css|http: ... pinner.css

Oddly enough, firebug reports that <webroot>/zm/css/reset.css is applied to the log window.

If I copy css/ to webroot there is no error.

Note: I think Drupal's applying it's own style sheets.
Well: I applied a rewrite condition /css/spinner -> /zm/css/spinner, but that's a hack. Still getting web_js ERR