PHP issues when creating site cache

Hello,
I posted to the forum last friday that I was having problems getting DW MX to work correctly.
http://webforums.macromedia.com/dreamweaver/messageview.cfm?catid=189&threadid=652771&highligh t_key=y

It seemed that DW could not create a cache of the site after I had defined it in the site manager. It would get to a certain file, and then would encounter a:
"Dreamweaver has encountered a fatal exception. Dreamweaver will now terminate".

error, and then the program would close. Repeated attempts to re-define the site in the site manager gave the same error. This morning, I discovered that DW only choked on pages that are PHP based. I have 3 other simple html sites that I was able to recreate cache for in DW with no problems.

I have been through a complete reformat and reinstall of windows, numerous reinstalls of DW (even updated to 6.1 with no luck), and a stripping down of my system to only the essential hardware (to try and rule out a hardware conflict). It seems that something is causing DW to choke on PHP code, but I'm not sure what it is. I haven't messed with prefs at all (I'm just trying to get the program to run!). I would venture a guess to say that it's possibly bad PHP code, but I can't really find anything wrong with the code when viewed in a text editor. The only thing I'm using PHP for is includes (navigation, headers, footers, etc.).

Does anyone have a suggestion of what I can do to get DW working again with PHP?

Well, I've solved my own problem.

Turns out it's something wrong with some CSS code in a linked stylesheet. I was working on the file in question last week before I started noticing the problem, but it hadn't clicked in my mind yet.

bottom line: make sure your CSS code is valid if you keep getting "fatal exception" errors in DW.

Man, it feels good to have that problem fixed. Now I can start working again!