hmlynn

now i even downgrade to wordpress 3.4.2 but it still the same errors.

I tried to use the Text/HTML Editor (while the Visual Editor didn’t work at all), but as soon as I click save draft or preview, nothing was saved and I got an error page saying the page doesn’t exist.

Hi,
yes, you are absolutely right, uploads folder has 755 permissions and all images with 644 permissions.

what should i do about it?

thanks in advance
hmlynn