Cannot log out and/or getting strange logout login problem.

the w3 total cache plugin is causing my users and myself not to be able to logout. When I disable it then all is back to normal.

When I activate this plugin, I logout only to be returned back to the same page. Then I log out again and it ask “Do you really want to logout?. I click the link and I am now logged out and redirected to login page not my home page. If I log back in it says I am logged in but not really. As I browse the site it logs me back out. If I type in my website in the browser I am still logged in. It remains in this login loop and I cannot logout until I deactivate the plugin. If I click on any other page, about, etc. they are displaying ok as logged out but clicking on the home page shows me that I am logged in.

I thought maybe it was the wp 3.0.5 upgrade but no because my test site is also on 3.0.5 with w3 total cache and I do not have this problem. I also use buddypress 1.2.7

Can I probably post my total cache settings for someone to look at? I have no idea what else to do.

Thanks
Dave