Generic Error: Missing Texture - please help

[Heilong]

I had to move RTW and EB from my old computer to my GF's old computer. However for some reason I get the following error when I am about to start a battle as Rome against the AS.

Generic Error:
Missing Texture
data/models_unit/textures/EBUNIT_ARMAN&AGART_STEPPE_CAVALRY_ARMENIAN_EYESPARAPET_HORSE.TGA

I have no clue on what to do.
Does anyone have this file that they can send me; or is something more going on.

Thank you for any help you can offer.

[XSamatan]

Please run validateinstallation.bat found in your root RTW folder and post your results here.
Are there other errors in battles, or is it just that specific selection?

XSamatan

[Heilong]

I don't know why but the validation isn't working correctly; it just gives me a blank txt file.

It says:
Running validation. Could take a couple of minutes, please be patient.
'java' is not recognized as an internal or external command,
operable program or batch file.
Validation is complete. There should now be a new file called "ebValidationResults.txt" in this directory. However, if you're running Vista and have installed RTW/EB under PROGRAM FILES, it probably won't. In fact, if so you're very likely to run into trouble later because of that placement. Make sure you have installed RTW/EB anywhere else.
Press any key to continue...

Maybe I'll wait and see if I can get my old computer back.

[XSamatan]

You can try it with another version :https://forums.totalwar.org/vb/showthread.php?93236-EB-installation-validation

It is the second line where you can find instructions about how to get it.

XSamatan