resolved
Just got my xbox and looked for an app to manage my xbox live stuff on my PC. Founds yours, it's really great however, I don't stay connected with the app if i close IE8. It loses the connection. Is this a known problem, if not, what information do you need to trace it?
Edit: Nevermind. I was automatically deleting cookies and passwords using a setting in IE8 on exit, which caused the problem.