Blank ‘new browser’ windows

A friend of mine has a P3 w98 and just changed from dial up to DSL. Now when browsing in IE6, if a link on a page calls up a new window or he right clicks>open in new window, the new window opens up with an empty new browser window (except for the title bar and toolbars)
I dont know for sure, but he says that he didnt do anything else to it.
Its got me stumped. Help!