make a little box / brush around it and go to selection and then select inside, maybe that would work, i also had this problem.

I have multiple gamebreaking glitches in my map and i just don't know how to fix them.
The zombies are floating a littlebit above the floar and the movement of the zombies is weard.
Also when i rebuild a barrier the tilt of the screen is not there but by the third rebuild barrier the ...

what you want to do is go to your Entity Browser in radiant.
then you go to script and select model.
now drag model into your map and klik on the 'n' button on your keyboard.
this will bring up the Entity info window.
with the script_model box selected that you have dra...

add radiant in your graphics card:

1. Go to your NVIDIA-vonfigurationscreen.

2. Go to 3D-settings.

3. and than in general settings you want to set your preferred graphics processor to powerful NVIDIA processor.

4. than go to Program-settings also in the 3D...