I picked this up in the Newsgroup:Jim Vieira wrote it.
http://guru3d.com/rivatuner/
It's a video tweak utility. Apparently Microsoft demands that
direct3d compliant drives do not have a Vsync /enable/disable
option in them. This program allows you to turn on / off vsync
and other options inside of the drivers / hardware.
I put the direct3d vsync option to "always on", it was set on
"automatic" or something. Now Morrowind does have the Vsync
on. No more tearing.
The program is a little weird to get used to at first. When you install it it just creates a directory and puts the program there. It doesn't go on your start menu or into your installed programs list. You have to browse there and make a shortcut to it to run it.
When you run it, there are two sections to the window that opens. The
top is for your hardware, the bottom for drivers. Next to the word
"Customize..." (on both top and bottom window) there is a button. Click the one in the bottom / driver section. It brings up a small pop up graphical menu with categories you can go thru. The one with the DirectX logo is the one you want. When you click that it opens a new window with several tabs of options for direct3d settings. There is a tab for Vsync.
I tried this also with Dungeon Siege but it doesn't work. I still get tearing in that game. Clearly DS totally ignores what you have Vsync set to and just decides to turn it off regardless. I hate tearing. It's ugly and makes the game feel crappy.
It does work in Morrowind though . Make sure you have it set always on and you should see the difference. However the parts where it is like 9-10fps are pretty painful to watch even with Vsync on
Thought you all might like to know about this.