The specified CGI application misbehaved by not returning a complete set of HTTP headers

I'm running MT5 rc3 and just started receiving this error message when I try to publish one of two blogs I have at fredsommer.com. I can publish the other blog and the website without any problems.

I performed an mt-check and the directories are OK:

* Movable Type version: 5.0rc3
* Current working directory: E:/HostingSpaces/fred@sommersports.com/MT
* MT home directory: E:\HostingSpaces\fred@sommersports.com\MT\
* Operating system: MSWin32
* Perl version: 5.8.9

The blog that I am having troubles with is http://blog.fredsommer.com/SommerGardens/. I can access the control panel OK, but I cannot open some of the published and unpublished posts, while others will open OK. I cannot no longer publish any new posts.

I was working to try and get Image::magick up and running last night and ended up restarting Windows IIS in hopes that this would help correct my image;;magick problem. Perhaps that caused the problem?

I tried creating a virtual directory in IIS and changed the config file to match, but that did not solve the problem.

Does anyone have a possible solution to this?

Thanks!

Fred