Hi to you all! It is impossible for me to access one website only for a couple of days, the Yell.com UK phone directory. I asked them to help me with this trouble, but one of the technicians answered «I have had no problems in accessing Yell.com online here and neither have my colleagues. There may have been a temporary bug with the system, but all is fine now. If you are still experiencing problems, I would suggest that it is an issue with your system.» It does not help because the trouble persists, whatever the solution I tried to find (clearing history and cache, bookmarking anew, changing slightly the URL). When trying to access to their website, it says: «HTTP Status 500 - «type Exception report «message «description The server encountered an internal error () that prevented it from fulfilling this request. «exception «… (Here are 13 lines about javax.servlet, com.yell.ucs.responder, org.apache.struts.action and 50 lines under achapter titled “root cause”) — then: «note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs. «Apache Tomcat/6.0.20» QUESTIONS — 1. I have access without any problem to Yell.com with the Safari (after having selected “Safari browser”), but there is no result with Firefox with the Safari browser! How is this possible? 2. I don't understand anything about what the “Apache Tomcat/6.0.20” - Error report means… 3. What and where can I find the “Apache Tomcat/6.0.20 logs” on a Mac OS X 10.4 and how can this be solved? Many thanks forward for your help (please use ordinary words, I don't understand anything about computer and Web things). Cordially == URL of affected sites == http://www.yell.com/