You go crazy over things that are little.
It can be a both good and bad trait ;I.
To answer your first question, it must be you computer in basis. Some people with Graphics cards that can run Skyrim or Battlefield fine plummet to the question:
Why cannot I run BL Shaders? Well, it must be your processor, or your OpenGL version.
I do not have my gaming computer, because I am on my Tablet, but yeah .-., I cannot really check these out.