Setting the cursor to a vertical thin line in vim

Question

I am trying to set the cursor in insert mode to be a thin vertical line and I am unable to. I have tried this in my .vimrc file:

set guicursor+=i:ver100-iCursor         


        

Answer 1

This did the trick:

set guicursor=i:ver25-iCursor

I had to reduce the 100 to 25