Can't Install the Game (Help please)

[OrionJc]

Hi guys, I've had the game now for 4 days, and still cannot play... let alone install the game...

I get this error message while trying to install Civilization IV :

"Error number : 0X80040707
Description : DLL function call crashed: ISRT._CtrlSetMLERichText

Setup will now terminate"

When I click on OK a second error message pops up :
"Error number : 0X80040707
Description : ISRT._ReleaseObjectContext"

Then when I click on OK a third message appears :
"Error number : 0X80040707
Description : ISRT._ListDestroy"

Any help on how to resolve this? I can't install the game at all...
I've read it might be something with my Temp folder, so I've cleaned it out... Someone please help me, I just want to play the game!
Thanks for the help