RuleMaster said:I've deactivated shortly Zonealarm and the images still didn't show up. I'm having Strato as provider, but I don't think that you know this company.
When you said the images didn't show up, did you get the BANNED icon or simply the failed image icon? If its the former, you still have an HTTP_referer issue, if not then don't worry about it - it wouldn't effect what MM was suggesting anyway.
As for the security feature: would it be a good idea to, on the new server, set up a test bed after its built (and before vBulletin is installed) with the appropriate PHP scripts to test the setting (and all other necessary PHP security settings) and then conduct a test driven by the community? You could have a meta thread (or maybe a general thread) with a link to the test, directions on fixing it if the test fails, and even a poll to determine how many have problems even after the fix.
It could let the powers that be make an informed decision.