We just discovered a bug with IWeb 02.10.00. The secure AJAX method described here: http://iweb.adefwebserver.com/SecureWebServices/tabid/64/Default.aspx created a random encrypted password that sometimes created a value that threw a JavaScript syntax error every 10-20 times it was called.
This has been fixed in IWeb 02.20.00 and is posted on the IWeb site:
http://iweb.adefwebserver.com/Download/tabid/53/Default.aspx
To upgrade, simply upload IWeb 02.20.00 to your site. IWeb will automatically upgrade.