Dreamweaver and Firefox

I've been told by a client who now lives in Poland that he cannot view his web site properly because he is using Firefox. I have Dreamweaver from 2004. Is there anything I can do, asside from upgrading Dreamweaver?

Sorry...but this looks like spam to me.

Surely you can download and install firefox to see what the problem is?

Download FireFox for yourself so you can see whats up - and then perhaps try to fix whatever is wrong?

You could also try running it through a html validator - you can find one easily through google :)

Do you have a URL i can have a look at to see if i can help you?