CFAdmin keeps on kicking me out

We just got a new CF 10 VPS with Hostek.  All seems well but in cfadmin we keep on kicked back to the login screen. I know that you can't have more than one user logged in at a time but even with just one user, it keeps on kicking us out.  We're not doing any particular action (ex. posting a form) when this occurs.  It seems to be randomly occurring after a few clicks here and there.  In the blog I linked to, some in the comments were having this problem too but there isn't a solution posted.  

Thanks

Jeff