Cannot reinstall Norton Internet Security 2010 after using Norton removal tool !

Hi

 

I got the trial version of NIS 2010. I used it for about 2 or 3 days. But I suddenly decided to use Norton 360 so I tried to uninstall the NIS 2010. I went to "Uninstall or change a program" I pressed on the uninstall icon for NIS 2010, the usual black window appeared. But when I pressed the "Second option" that removes all the settings and data, nothing happened!! The windows just disappeared!!

 

I tried this 3 or 4 times, I restarted the computer, the same thing happened. So I decided to use Norton Removal Tool. It removed successfully. I restarted the computer. But remembered that N360 doesn't have SONAR 2 !! So I felt like a fool. When I wanted to install back the NIS 2010, I clicked on the downloaded file, Initializing went well but when I press "Agree and Istall" the window disappears! I tried on safe mode and everything I could think of. I even removed all the traces of norton I knew from registery. But the problem persists !

 

I appreciate if someone helps..

 

Thank You