I'm a beginner in Vray for Sketchup. I'm trying to save my render in a higher quality but I can't and I need it for tomorrow.
I read in many websites that I should just change the size in the output option, but I can't understand why I cannot change it and it's making me crazy.
I attached the screen shoots of my problem. When I set 800x600, it generates a render of 533x400 and when I set the biggest option size, it generates a render of 600x337.
I maybe do something wrong but I don't know what's the problem. Could anyone please help me??
Thank you in advance

Archivo comprimido.zip