I got a response to this problem on the lispworks mailing list.

On 10-Oct-08, at 10:02 AM, Pascal Costanza wrote:

Hi there,

Yes, this is Leopard's weird security system. In the firewall settings of your system, don't select "Set access for specific services and applications", but only either "Allow all incoming connections" or "Allow only essential services."

Leopard stores firewall settings per application in the application file itself when you select the wrong option here, and this destroys the LispWorks image.

Pascal

On 9 Oct 2008, at 23:14, Bob Hutchison wrote:

-- Lisp50: http://www.lisp50.org

Pascal Costanza, mailto:pc@p-cos.net, http://p-cos.net Vrije Universiteit Brussel, Programming Technology Lab Pleinlaan 2, B-1050 Brussel, Belgium

On 9-Oct-08, at 5:15 PM, Bob Hutchison wrote:

...

Hi,

On occasion when I'm running Hunchentoot in LW 5.5.1 when I quit then restart LW I get the following error:

Lisp executable xfasl-image.static apparently corrupted. (Truncated?) Cannot restart.

I'm having to copy the LispWorks.app from a backup overtop the version in /Applications/...

Any idea what might be causing this?

I'll be asking on the LispWorks mailing list as well.

Cheers, Bob