SL6 x64 Intel Chip - installing & running Fritzing

Yes that is true - SL6 is now SL7 based on (RHLE).
I am using SL6 with all the upgraded libraries , SL6 Distro icons and lay out is better.
I tried both SL6 initially and later 7 they both have the same problem.
SL6 works well with Matlab 2015b and installs from root dir of the DVD.
I have tried Ubuntu ,Debian ( Raspberry ver ) and other Distros with Linux. I am interested in mathematics signal processing - ie Wavelets and SL6 comes with C++ compiler, Phython, platform trageted compilers and many Wavelet tool kits. I am using Arduino target boards and have started using Raspbian boards. Raspbian -boards are linux and hence my interst in Linux but I am on a steep learning curve. Perhaps at this early stage it might be worth swapping from SL to Ubunto-Kde or Raspbian. anyway its always decisions that are made by hindsight...