Sorry for not being able to describe this more appropriately in programming terms:

I am using Holger Will's slider code that has been proven to work with SVG Web when used in a single instance but now I want to instantiate the slider two times and both sliders should behave independently.

Here is a reduced testcase that works fine in native modes (Safari5, FF 3.6, IE9pre7)

http://vis.uell.net/gsvg/two_sliders.html

using the flash renderer, on touching a second slider (left or right just depending on which one you moved first) both sliders move together

http://vis.uell.net/gsvg/two_sliders.html?svg.render.forceflash=true

Fixed in r1306.