I've been having problems with pictures lately also, but like you, Patrice, I kept trying and eventually figured out that sometimes the pic's would show up in my list of attachments even though I had tried to used the picture icon when editing a post to imbed them in the post. I'm using Firefox on a Mac when this happens. Since I figured out what was happening, I've been just using the attachment option instead of trying to imbed them in the posts and it seems to be working better. I also got some weird errors on a gif file, that was sized and saved correctly I believe. When I tried to attach it I got an error that said it wasn't a gif file. (Photoshop certainly thought it was...). There seems to be something kind of weird going on for sure.