For a long time we have had a problem with the web site: http://www.datasheetarchive.com/ We can navigate the site ok but when trying to download a PDF from the site we get back: "Could not execute query : Please contact administrator@xxxxxxxxxxxxxxxxxxxxx" I can reproduce the problem by searching for a component (e.g. 2n3055), clicking on the PDF symbol and then clicking on the thumbnail. At this point I get the above quoted message. This is the URL my browser is trying to retrieve: http://www.datasheetarchive.com/pdf-datasheets/Datasheets-115/DSAP002069.pdf If I just use that URL then I get the error too. For a long time I thought this was a problem with the site, I contacted the site admin, he was nice but nothing was resolved. Just recently I have noticed that if I point my browser at our parent proxy in the DMZ running squid 2.7stable6 then the PDF will download fine but if I use one of our internal proxies that use the parent in the DMZ then I get the error I quoted above. In summary: browser -> DMZ squid proxy (works) browser -> internal squid proxy -> DMZ squid proxy (fails) all proxies are running squid 2.7stable6 -- Brett Lymn "Warning: The information contained in this email and any attached files is confidential to BAE Systems Australia. If you are not the intended recipient, any use, disclosure or copying of this email or any attachments is expressly prohibited. If you have received this email in error, please notify us immediately. VIRUS: Every care has been taken to ensure this email and its attachments are virus free, however, any loss or damage incurred in using this email is not the sender's responsibility. It is your responsibility to ensure virus checks are completed before installing any data sent in this email to your computer."