I've been having a series of image upload problems on my WordPress v2.51
At first I was having the same problems as Otto42 has described a fix for above (the flash-based uploader was returning and "HTML Error." I added a line of code to the .htaccess in the directory root, and it nearly worked. My images uploaded, but now they are coming up with broken links.
What is happening is that:
Instead of giving my images a URL of e.g.: http://www.mydomain.com/wp-content/uploads/image029-300x225.jpg
they are coming up as:
in other words WP seems to be adding my domain name twice to the links.
The strange thing is that if I look at the post in html view before publishing it contains the correct URL, but as soon as I publish it adds this double URl.
If anyone has any ideas or suggestions I'd really, really appreciate your help.