Customer's seeing other Customer's page

Hey there,

First time posting here but I got a problem on my hands.

I have a Xserve running FileMaker 7 Server with IWP. Customer A sees their databases and works on them and occasionally gets a popup (on both Mac & Windows) of a website of Customer B who also runs their databases off of the same unit (but their website is located on another unit in the data center). My gut tells me this isn't possible but I have had another customer on our Filemaker box say that they are getting Customer B's site as well in a popup window.

First of all... is this even possible?

Customer A, B & C have their FM databases hosted on the same Xserve.

Customer A & C are sometimes seeing Customer B's website (not databases) in the form of a popup when they have their own databases open in their browser (Safari, Firefox, IE). Customer B's website is hosted on another Xserve.

The only thing I could think of in this case is that something in Customer B's database is causing his website to open, however Customer A & C have no access to the customer's website.

Any help on this matter would be well appreciated!

Yvo