I had this problem this morning. My other blog, AtLastMyLove was giving me an error whenever I tried to pull up the domain with the. It also gave me an error whenever I tried to go to the admin portion of the site. This was the error:
Warning: Cannot modify header information – headers already sent by… in wp-includes/pluggable.php on line XXX .
There after the closing tag of php blinked my cursor… exactly one space after the closing tag. I took out that one space and uploaded the file. Immediately everything began working. It’s amazing how one little space can make all the difference. 🙂
So, I guess I can keep my account hosted on the linux web hosting account for now. It’s kind of ironic- I work at a web host, and I spent three hours picking apart the code of my site for one pesky space.