I have a client that's using the WP Super Cache plugin for his WordPress 2.7 blog. He's on a shared host, and has been running his blog for a while, but recently installed the plugin to speed up performance.
He's happy with the performance of the site, save for one small hitch: it won't load in Internet Explorer (!). The site works fine in Firefox, Safari, Opera, etc. but anyone that pulls up the site in IE gets a "cannot load page" error.
We've gone through the steps of disabling all other plugins, and the site loads fine if WP Super Cache is turned off.
I've checked his .htaccess file (it's fine), the error logs (none), and made sure compression was turned off (it is).
Any idea what's gone wrong? Is there anything in the plugin that IE could be choking on?