Hi everyone I am having a problem with a new ISA server 2004 install, which has preplaced an ISA 2000 server. The problem is this: My customer wants to block downloads of EXE files, so I create a rule that denys users access to sites with a specific application content. Following this rule is one that allows all internal users access to HTTP, and this all appears to work fine - attempts to download EXE files are blocked and all other browsing works fine - almost! If a user then goes to http://www.easyjet.co.uk/en/book/index.asp and selects any flight combination and clicks 'Show flights', a blank page is displayed. Turning off the content rule allows this to work. However, just about any configuration within the content rule (eg, block videos) stops the POST function working in the easyjet website. This behaviour also manifests itself on many other sites, such as search forms etc. Any ideas? I am new to the list so apologies if this has previously been covered. Cheers Sean