I am having the same issue as triom was here:
http://ellislab.com/forums/viewthread/87068/
I am running EE 1.6.9 Build: 20100430 and MSM 1.1 Build: 20091201. I have two sites setup on MSM. The main site and the subsite both use the same captcha settings and point to the same folder on the main site. I am able to see the captcha image on both sites, but when I fillout the form and type in the correct captcha on the subsite it gives me the following error:
“In order to submit this form, you must complete the captcha field.”
Captcha works fine on the main site. Please help.
Thanks
Michael