Go here >
http://www.nero.com/en/nero-up.php
Download Update-Package 1 - 28.58MB (as of today)
and
Download Update-Package 2 - 33.47MB (as of today)
If you already have a version of Nero installed, Remove it using the Control Panel function, Add/Remove Programs...
Then, install the basic Nero program first (Update-Package 1)
Re-Start your machine...
Install NeroVision Express 3 (Update-Package 2)
Re-Start your machine...
Do NOT install any other Nero components other than perhaps the 'templates' which are available for easy downloading after you have initiated a 'burn' of a video file to a DVD disc...
If you do D/L the 'template pack', do not continue with your burn project at that time... Re-Boot your machine again and all should be well... Honest !
Last... Remember that when you are 'burning' a video file onto a DVD disc there is a lot of processing going on... A LOT !!!
Don't do anything else with your machine during the burning... Nothing...
AND, you are going to normally want a minimum of 5GB of truly free space on your Hard Disc Drive...