Uploading avatars on iPhones/IPads (appearing sideways)

Our members seem to be having problems uploading their avatars using iPhones and iPads. There's no problem getting them on, what the problem is, is that they're appearing sideways and I'm having to fix them constantly for the members.

Is there any chance you could look into why this happening please?

Unfortunately, android phones and tablet devices seem to be what many people are buying these days to access the Internet rather than buying a computer. Time moves forward and these devices are replacing computers for many. So I guess the problem is now mine and i just have to keep on fixing this for them.

Thank you for your reply.