Hey Beth! I hopped into your account and took a look at your one recent campaign. While I didn't see any tests, I did notice that since writing this post, you were able to send it via Review and Send to one contact. I made a copy of this mailing and was able to send a test to myself successfully. Are you still experiencing issues? if so, you may need to completely clear your browser's cache and cookies and restart it before trying again. Otherwise, let me know with as many specific details as you can and I'd be happy to look into things further!