I have discovered something where on authentication I do on Win2k IIS server from IE 5.5.

If I authenticate against a IIS server using Basic Authentication under IE 5.5, something will make my browser goes weird for upcoming transactions I'll do. It seems it relates to the cache. If I restart the browser I'm ok. After a while, I won't be able to fire a post against the server anymore. The page will be processed but it dissappear immediately and replaced by a page not found. If I don't authenticate, I'm ok. As soon as I do, I'm force to restart the browser in order to clear this mess.

Anyone has encountered this?