It might be because of the file size?

284415 bytes...or just about 278 KB

The rules for image uploads are:

"Please use JPG's only & keep within 800 pixels wide & 100K max."

Your image isn't a jpg, is almost 3 times the maximum size and is a sig image...which means it gets loaded every time one of your posts is viewed.

Hasn't been me deleting it in the past...but maybe in the future now that I'm aware of the situation.

Please, seriously consider using something of about 30KB as a sig image, you have to remember that all of this has to be loaded and it uses up bandwidth that has to be paid for. I'm sure the users on slower connections will appreciate it as well.

Check out my sig...only 7 KB.