Conflict in IE with custom google search

I have some trouble with your plugin in IE8/IE9. After I activate one of this list :
- Usquare (codecanyon)
- Sublime tweets (codecanyon)
- Content bulder (codecanyon)
-Twitter ultimate (codecanyon)
- Sidebar widget manager (codecanyon)
- WP RSS Aggregator
Your plugin stop to walking in IE. I can't make search. I use the last version of plugin in Wordpress 3.5.1.
Someone can help me?