xtypo conflicts with Caption plugin using JCE editor

I haven't done anything with the theme style sheets yet but Xtypo seems to be working fine.

Some additional info for you. In Internet Explorer 8, after Xtypo install, the status bar shows the error icon when viewing the pages on our website. Details are:
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 3.5.30729; .NET CLR 3.0.4506.2152; .NET4.0C; .NET4.0E)
Timestamp: Sat, 22 Mar 2014 22:56:20 UTC
Message: Object doesn't support this property or method
Line: 7
Char: 2
Code: 0
URI: transpacyc.com/plugins/content/xtypo/assets/script.js

Pages work fine, they just have the error icons and error details window if selected. No error messages in FF, Google Chrome, Safari. I checked on other systems I have running IE 9 and 11 and they do not show the error. This is probably just an issue with IE 8 but thought I would pass it on. Attached are 2 screenshots, #1 shows the error icon in the status bar and #2 shows the error details window.

If I disable the Xtypo and Xtypo Button plugins in Joomla, return the JCE editor settings to my original configuration the the error icon and error details window do not show in IE 8.

Not even going to worry about it. I'll be moving off my beloved Win XP platform with IE 8 in a couple of weeks anyway. My other systems are all running Win 7 and have newest browser versions.