the following to solve most issues especially related to BibTex acting
up or PDF LateX complaining about GUI framework.
a) Set packages to be updated automatically (Miktex>Settings)
b) Install package 'translator' if you graphics in your PDF.
c) Remove all languages you don't use Miktex>Settings>Languages.
d) Leave MikTex to be in A4 size and use the Ghostscript/dvips settings
to scale to Letter sized paper.
e) Update MikTeX as soon as you install it.