[Inkscape-user] SVG opening problem

Hello,

I use Inkscape Apr 1 2008 on Windows XP. I also use the program Geogebra, and I want to export my works to SVG and then edit them in Inkscape. But any exported SVG file I get can not be opened by Inkscape, it says "Failed to load the requested file". But on the other hand my Firefox displays them well. A simple example file can be found at http://zaradek.hu/SVG/2.svg.

Thanks, Máté