Hello Graham, I applied the patch to mod_scgi.c, recompiled, installed... 172.16.20.42 angemeldet 2003-05-31 21:11:47 4664 "GET /menu/791 HTTP/1.1" 200 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' 0.04sec 172.16.20.42 angemeldet 2003-05-31 21:11:47 4664 "GET /css/menu.css HTTP/1.1" 304 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' 0.00sec ==> /var/log/scgi/debug-handbuch.log <== ims shortcut taken, 304 responded ==> /var/log/scgi/access-handbuch.log <== 172.16.20.42 angemeldet 2003-05-31 21:11:54 4664 "GET /menu/767 HTTP/1.1" 200 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' 0.04sec 172.16.20.42 angemeldet 2003-05-31 21:11:58 4664 "GET /menu/778 HTTP/1.1" 200 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' 0.05sec 172.16.20.42 angemeldet 2003-05-31 21:12:01 4664 "GET /menu/768 HTTP/1.1" 200 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' 0.04sec 172.16.20.42 angemeldet 2003-05-31 21:12:05 4664 "GET /menu/783 HTTP/1.1" 200 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' 0.04sec 172.16.20.42 angemeldet 2003-05-31 21:12:07 4664 "GET /menu/828 HTTP/1.1" 200 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' 0.05sec 172.16.20.42 angemeldet 2003-05-31 21:12:11 4664 "GET /menu/830 HTTP/1.1" 200 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' 0.04sec 172.16.20.42 angemeldet 2003-05-31 21:12:11 4664 "GET /dbdok/830 HTTP/1.1" 301 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' 0.02sec 172.16.20.42 angemeldet 2003-05-31 21:12:11 4664 "GET /dbdok/830/ HTTP/1.1" 200 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' 0.03sec 172.16.20.42 angemeldet 2003-05-31 21:12:13 4664 "GET /dbdok/830/ HTTP/1.1" 200 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' 0.03sec 172.16.20.42 angemeldet 2003-05-31 21:12:35 4664 "GET /menu/860 HTTP/1.1" 200 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)' 0.05sec and it works. Great!!! BUT: the IMS-Patch was not enough for mod_scgi.c. Additionally it was necessary to add a line with "last modified" header ... and that was the main problem generator (the missing one) I sent the patch to mod_scgi.c to Neil, also include it in this mail for the list, if somebody stumbles upon the same error. *** mod_scgi.c Sat May 31 21:19:42 2003 --- mod_scgi.c.patched Sat May 31 21:17:51 2003 *************** *** 219,224 **** --- 219,226 ---- add_header(t, "CONTENT_TYPE", lookup_header(r, "Content-type")); add_header(t, "DOCUMENT_ROOT", ap_document_root(r)); add_header(t, "HTTP_ACCEPT", lookup_header(r, "Accept")); + add_header(t, "HTTP_IF_MODIFIED_SINCE", lookup_header(r, "If-Modified-Since")); + add_header(t, "HTTP_LAST_MODIFIED", lookup_header(r, "Last-Modified")); add_header(t, "HTTP_REFERER", lookup_header(r, "Referer")); hdrs_arr = ap_table_elts(t); Greetings, Harald