I have installed SE 2D Drafting and all is well and no issue with drafting.
Part of the installation is the SE Viewer.
When I try to open dxf, or dft files it fails.
I have tried dxf and dft files saved from SE drafting and from other CAD systems all no good.
I'm able to open these same files with SE 2D Drafting without any issue's.
So I'm I doing something wrong?
My system meets and is above the minimum requirements for running the software.
The viewer packaged with free Solid Edge 2D Drafting with ST5 has known issues. As it is not widely used in that context, we do not plan a patch (those on maintenance can receive a patch). If it is important -- I'd suggest you instead download the ST4 package (see the first "sticky" post in the NG). Otherwise a fix for completely free 2D and viewer will come with ST6 this summer.
Sorry for the inconvenience. I hope the 2D Drafting works well for you.