Sandbox and InPrivate browsing

Is there a conflict between sandbox and inprivate browsing for explore 8.0? Should you only use sandbox when surfing?
There are websites that I can go to in normal webbrowsor with inprivate browsing on, that I can’t go at all to in sandbox, is there a way to adjust sanbox parameters? I mean I thought that was to point of sandbox to protect when you at the sites, not stoping you from going to the sites.

Sandbox does not block access. It just run, execute, open… everything in a closed environment (the sandbox), avoiding further harm to your system.