Hi James,
Please post your computer specs. Perhaps there are some things we can look at to help with the stutters such as disabling your antivirus from scanning your Trainz and userdata folders. I found this to be particularly helpful in that respect.
John
OS Name Microsoft Windows 7 Home Premium
Version 6.1.7601 Service Pack 1 Build 7601
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name
System Manufacturer To Be Filled By O.E.M.
System Model To Be Filled By O.E.M.
System Type x64-based PC
Processor AMD FX(tm)-8120 Eight-Core Processor, 3100 Mhz, 4 Core(s), 8 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. P1.60, 3/27/2012
SMBIOS Version 2.6
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "6.1.7601.17514"
User Name LOTUS72\James
Time Zone Central Daylight Time
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 7.98 GB
Available Physical Memory 5.88 GB
Total Virtual Memory 16.0 GB
Available Virtual Memory 11.7 GB
Page File Space 7.98 GB
Page File C:\pagefile.sys
Here are my specs. Graphics card is a Sapphire Radeon 7850 2Gb