What is the file size? ...file type? Could the filename be too long? Do you have any sort of firewall or security software that might prevent your posting a pic?
I don't think I have any firewall or security software. I used to be able to post by clicking on the link thing with the tree in the square till I did a hard reset in my phone... Maybe I messed something up but I don't know what.
not sure if its in use here at tnet but theres an app called tapatalk made to use with phones to better interact on web forums. might look into that if its still giving you trouble.
It's a file size thing I think. Try emailing the picture to yourself and it should offer to scale the image down. Or upload it to an image site and download a smaller size from the image site.