Hello. Unfortunately, your GPU is relatively low-powered and does not meet the minimum requirements to run GuruGuru ( if I'm wrong, let the respected moderators correct me).
From my personal advice, I can advise the following:
In your folder "\Steam\steamapps\common\Game Guru\Files\effectbank\reloaded" find the file " settings.fx "open the file with notepad, and inside find the lines :
//#define LAPTOP // Make everything faster for laptops, will also remove DOF,MB,SAO. Lower shadow, remove grass normals, distance improvements.
And remove the first characters "//" (this is the comment flag) .
Then in the folder "G:\Steam\steamapps\common\Game Guru" find file "setup.ini" and find this line:
forceloadtestgameshaders=0
Change this to value: forceloadtestgameshaders=1
then run the GameGuru (It will take a long time to load because the shader files will be recompiled)
then open any map and run (or just run your blank map), than leave from GameGuru and change the value back to: forceloadtestgameshaders=0 (inside setup.ini file).
All these manipulations will be set to ultra low graphics settings.
Thanks for your articles, explanations and examples. You are the best community I have met.