Mr.Woodcock,
Thank You Very Much for Posting my Last Comments.
A While has gone by now, and I have been Working Diligently.
My “Video Motion” is Exceptional Now.
So, here are a Few “Rules” to Succeed:-
1)      Ensure that there are No Other Programs Working in the Background (Use “Task Manager” by Operating “Ctrl+Alt+Delete”, and look at “Applications”)
2)      Run the Game in “Offline” Mode:- Begin “Steam Library”, and Click on the Top Right Heading “Steam” – “Go Offline”. You will know when you have been successful, because the “Steam” Icon on the Bottom Right Task Bar will have Red Writing on it (I have a USB Wireless Adaptor, on a Length of USB Wire, which I can Easily Un-Plug, thus Connecting and Disconnecting from the Internet. (This stops “Steam” from Updating, or Advertising Other Games, whilst I’m doing Something “Far More Important” – Playing!!)
3)      Having the “Very Latest” Graphics Drivers is NOT Necessarily the Best Condition! I have tried numerous Video Cards, and Some just Crash and Stutter when Internet Browsing, and in Gameplay. I have Spent lots of Time Speaking with Microsoft Support (USA) and AMD/Ati. We have Tried Many Different Software Modifications, and I have Eventually Purchased a “Gigabyte” Version of the HD6750 (1GB DDR5). I would Recommend the “Visual Quality” of All the Gigabyte Company’s Products.
4)      It is Not a Case of “Over-Driving” the Video Card in Order to get the Best Graphics, indeed “Under-Driving” with “This” Game often Works Wonders (Bear in Mind that we are Travelling at Reasonably Low Speeds – Leaving Stations and Cruising through the Countryside, etc.,) It is Beneficial to Check the Various Settings in the 3D Menu of the Cards – Mainly Setting to “Use Game Application Settings”, then there are just a few Other Settings that can be Experimented with (Experiment with a Piece of Game where you are Leaving a Station, Increasing Speed and Aiming for the Next Station – This should be “Saved-F2”, and thus Repeatable, for the Stutters are Also Repeatable!)
5)      Now, Go Into the Game (In Offline Mode) and Check the “Setting” Menu. Set the Application  to “Low”, the TSX to “On”, and the “Multi-Core” to “On” also (The Detail in the Game is Such that These Settings give More Than Adequate Realism!)
6)      Load the Game (“Start”) and Enter the “Options” Menu. Again, Begin with “Low” Graphics and then go to “Custom” and Gently Increase Each of the Settings, whilst Running and Re-Running the Scenario Previously Saved. Most Settings are More than Happy around “Medium to High”, and it seems to be the “Shadows” Adjustments that Slow the Video Down.
7)      Go into the “Sound” Menu and Reduce the Ambient Sounds to 25% – There is Really No Need to hear Birds Singing, whilst Running at 60mph!
8)      Now, with the Help of “JustTrains.net”, we have Realised that the Main Stuttering of the Video Play is due to the “Detail Level” of Individual Components in the Various Routes. I believe that JustTrains are looking into their Routes “Bristol to Exeter” and “Totham”, to Check the Level at the Particular Points of a “Stall” (Just to help Clarify, when approaching a Station, where there are Platforms, Buildings, Gantries, Houses, Factories, Trees, etc., etc., etc.. Then Each Item should have a Setting of at least “2” and No More Than “5” (Out of “10”) We can get away with This, since the Game-Play Smoothness is more important than an Astonishing 3D Illusion of some “Row of Houses”, way over in the Distance, that can only be Seen from a Very high Vantage Point! Now, I cannot say how Long we will have to Wait for a Route Upgrade Package, But, I have found that it is Quite Easy to “Edit” your Favourite Route, and to Simply “Click” onto the Various Scenery Items and Adjust their Detail Levels (In the Right Hand Menu). Details of how to do these things can be found on the “Railsimulator.com” Web-Site under “Support”, or if you are one of the Lucky Ones, in the “Creator” Manual provided in the Original Edition of “Railworks”.
9)      I am just thinking here what I have done to my PC, which Actually Gave a Boost in Realism Quality, so, this included: Changing from a Dual Core Processor to a Quad Core (Not a Massive Difference I will say Here), Adding an Extra 2 GB of Memory (Now 4GB Total, which is All my Motherboard could handle with WinXP 32 Bit – And THIS was a Great Improvement for £20 ish); The Change to the Gigabyte HD6750 Video Card (£100 ish. Please note that the DVI Sockets of Various Cards have Various Outputs. Some are Purely Digital and Others, Both Digital & Analogue. I needed the Analogue Outputs, so that I can Play on Both my LCD Monitor and Old, Plasma 43” TV with remote Keyboard and Mouse Facilities. This took Loads of Experiments to Establish!). Then there is the PSU. At least 550 Watts is Great, and 700Watts is even Greater – “What a Video Improvement for just £20”. Now, I am also remembering here, the “Monitor” Set-Up. Experiment with Different Resolution Settings, dependant on your “Windows” Software and the Screen Capabilities – Again, keep it Lower Rather than Higher!
 
So, there we have it, a Few Pointers.
 
And the Pleasure that I am having with the “Realism” of Running a Train, is Breath-Taking!
 
Kindest Regards,
Pentacone Peter.