I too, have a problem that just cropped up loading photos to my posts and it is frustrating as "you know what"! I continue to get an error saying....
"unable to create directory /wp-content/uploads. Is its parent directory writable by the server."
I checked the file on the server and it is there along with the photos. I also deactivated all the plug-ins to make sure they were not interfering but NO SUCH LUCK!
I use the Flexsqueeze theme but I can't see how that would affect anything and I am about ready to give up as I don't know where to turn.
Any tips, thoughts, would be appreciated.