kronos2 0 Light Poster

I have just encountered a problem with Microsoft Internet Explorer 8 on Microsoft Windows 7 platform, the problem started off with using CBT Nuggets in that it prevented all pop ups from this application.

I turned off the pop up blocker and then it allowed the application to run for about 20 secs or so before disappering from the screen altother and switching off altogether, since this has happened however pop ups from the internet also disappear.

I have removed all anti-virus & firewalls so they do not do not have any impact at all on internet explorer, does anyone know or have they experinced this problem further more do they know how to reolve this issue ??????