hammer editro help needed!

my hammer editor will not snap to grid when I’m using the select or block tool (even the clipping tool doesn’t work) so please tell me how i can fix this! it was working before i started it up today.

map > snap to grid

or shift-w

thanks! i must have hit shift + w when i was mapping at some point!

I do it, I remember when shift sped up movement in the 3d view, so I use shift a little still, by accident turning off grid snap :V