Pop Over Settings

Using Single Site Wordpress 3.0.5
Pop Over version: 3.0

Rules that i have in place:
1) Visit via not an internal ink
2) Visit via a search engine
3) Pop Over shown less than "3"
4) Visit via a specific referrer: "What goes in here"

the issue that i am having is that when you use a search engine to get to our site the pop over doesn't always work. As an example if you search using bing.com it will show up but if you use google to find our site the pop over never activates.

i am confused unless this version of pop over is not fully compatible with 3.0.5

thanks for your help