This is a sudden problem, I had not changed any settings but when I logged in today I got a blank page. I can go to /wp-admin and access everything in there just fine, but when I go to submit anything (save a draft, post, change a setting, etc.) it loads a completely blank php page. For example, trying to post leads to a blank page at http://styleflux.us/wp-admin/post.php and stops.
If I reload /wp-admin the action was successfully completed but this is obviously an annoyance and I hope it's not indicative of some larger problem.
I'm running WP 3.0 and I use the Atahualpa theme. I've already deactivated all plug-ins but the issue was still there. Is this some sort of php server issue?