I got it running :)
I removed all things related to Gatling, downloaded a fresh one from the site and ran on the "broken" machine.
Now getting the normal
GATLING_HOME is set to "C:\gatling-charts-highcharts-1.4.3"
Choose a simulation number:
[0] advanced.AdvancedExampleSimulation
[1] basic.BasicExampleSimulation
both bat files work, recorder starts no problem.
Now, onto the actual task I wish to perform with this tool. We have a Sliverlight page which hooks into various web services calling various database and one file sever which stores small 15min/1min chucks of video. We need to load test these, anything specific I should be aware off. I was just going to hit the URL directly using the recording and tweak the code if needs be,