How do I attach a file?

I wanted to show the burn results of my last rip/burn but when I went to attach the file it said invalid file extension. The file is a png file. The file name shows up under additional options under attach files but wonโ€™t attach to the thread. What am I doing wrong? :confused: :confused:
Never mind, it shows up when I post. I thought it would show up when I preview the thread. Sorry. :o

Lol, nice one :stuck_out_tongue: