ddg426 - 2:06 pm on Sep 10, 2013 (gmt 0)
I went to text only for most of my adsense ads after that.
I've done the same thing. While I've heard that you can try to label the other ads by name to differentiate them, some networks don't like that any more than Google does and ultimately it doesn't seem to be worth the risk.
The safest course of action appears to be to only use Adsense text ads on a website if you are also running image-based advertisements.