[Nothing happens hitting print]

same problem with cura 13.03. I've even reinstalled windows, it solved my problem only for one day...

 

[How many cubic cm is my object?]

If you're printing with pla, it's about 1,25g/cm3. Cura shows filament weight, so just calculate.

 

[Latest version (Mac) check?]

It works on MacOS as usual. I've installed 2 days ago and still no problemes.