I'm using a customized registration page (via the Register Plus Redux plugin), and I'm getting an error when I click the Refresh button for the CAPTCHA. This happens regardless of whether I've got the "Use CAPTCHA without PHP session" turned on or off.
Registration does appear to function -- I just can't refresh the CAPTCHA image. When I try, I get an error message at the bottom of the screen. If I click the error alert, I get the following message:
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; SU 3.26; InfoPath.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
Timestamp: Sat, 8 Jan 2011 15:38:21 UTC
Message: Object expected