If you are experiencing difficulty allowing us to use Netviewer to help diagnose your problem, it may be your system is not suitable to run Netviewer, and we may have to assist you in another way.
To see if you can run Netviewer, click the following link.
Then click the Netviewer Support button.
Then click Start System Test
If your system is suitable, you will see a screen like this. If not, let us know what failed, and we can assist you from there.