$_SESSION

Hello all, i have a question concerning the $_SESSION stuff. i have a domain registered with online webspace on this webspace i have put a litte bit of code that will send the visitor's of the website to my server using a frame. I open one frame full-screen size and i let it open MY_IP/base/index.php as page. i then have a login page which uses $_SESSION and which sends you to either MY_IP/login1/index.php or MY_IP/login2/index.php depending on your username. (which are stored in mysql) this all works fine. i get redirected to the right page and all. but then on the new page the session doesn't work anymore. so the user gets a error for not being logged in and returns to the login page at /base AND here's the strange thing.. when i open it using the http://MY_IP link it all works great. it just doesn't when i use the frame via my hosting provider. So i tried to make a fram on my site which is exactly the same as the frame at the hosting provider. And it all works great aswell. just not when i place the frame at my Hosting Prov. has anybody got a clue how to do this? thanx Dennis