The picture posting is really rocky and flakey. Sorry, it just sucks. I had no option to go advanced but the posting menu looks like it is already advanced... I clicked on the manage attachments and tried to select files on my computer... It just sat there.... I tried again several times and finally it took..
Now I notice that when I reply to the thread I see that I can go advanced... Weird.
I know this should be in the post picture problem thread but just wanted to post it here too.