Edit: Doh! Eric beat me to the reply by at least a minute. ;)
Any chance you an temporarily disable permalinks to the default of ?p=123
can be reachable via
It's only for a little while for troubleshooting.
Something is tossing
HTTP/1.1 301 Moved Permanently which you can see via this curl command.
$ curl http://matthewscottbaker.com/blog/2012/11/06/movie-review-double-feature-fairy-tales-1978-full-moons-grindhouse-collection-auditions-1978/
jan@dixie:~$ curl -I http://matthewscottbaker.com/blog/2012/11/08/book-review-siblings-2012/
HTTP/1.1 301 Moved Permanently
Date: Thu, 08 Nov 2012 16:14:25 GMT
P3P: policyref="http://info.yahoo.com/w3c/p3p.xml", CP="CAO DSP COR CUR ADM DEV TAI PSA PSD IVAi IVDi CONi TELo OTPi OUR DELi SAMi OTRi UNRi PUBi IND PHY ONL UNI PUR FIN COM NAV INT DEM CNT STA POL HEA PRE LOC GOV"
Content-Type: text/html; charset=UTF-8
Those redirects are odd. These work
But these looks missing.
Which may mean you don't have a complete WordPress 3.4.2 set of files.
All else fails, try the usual troubleshooting steps (some of which you've done already):
- deactivating all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).
- switching to the Twenty Eleven theme to rule out any theme-specific problems.
- resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems.
- re-uploading the wp-admin and wp-includes folders from a fresh download of WordPress.
Please let us know how that works out.