I have an iPad 2 with the most recent iOS available for it installed. I have the iMessage set up using my apple account email address and password and a couple email addresses in the Send & Receive. I am connected to my home wifi, which is working. I can connect to the internet. I select a recipient from my contacts and am using myself. The "Send" by the text box is blue, but not a dark blue and nothing happens when I touch it. I tried it on my iPhone 5 and sent a message to myself without a problem. It is set up the same. I have turned iMessages off and reset everything with the same result. I have it set to start new conversations using my Apple ID account email address.
I have also just discovered that if I add a photo the "send" is activated, but if I remove that photo before sending, the "send" is no longer activated. I could not find any settings about photos in the set up of the iMessages on the iPad.
Any suggestions as to,why it is not working or what I can check? I can send a test message from my iPhone and I receive it on both the iPhone 5 and iPad, but I cannot start a message with the iPad.
Thanks in advance for any assistance.