Getting a Blank Page

Hey all,

I have a WordPress install here:

https://dev.thephuse.com/acid/

It seems nothing is displaying. I am running a custom theme, however I replaced it with the default and am still having this problem.

No errors are displaying unless you try and access one of the posts directly:

https://dev.thephuse.com/acid/2009/12/hello-world/

Any ideas as to what could have broken?

Thanks!!