keyboard shortcuts - Why does < C-a> (CTRL+A) not work under gvim on windows? -

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i'm trying use < c-a> (ctrl+a) shorcut under vim increment variable under cursor. works fine under vim running on linux. when try in gvim under windows "selects all" (i.e. highlights or visually selects text in current window). how can change behaviour or alternatively how can recover increment variable functionality (e.g. perhaps different key mapping)?

this because of mswin.vim sourced default _vimrc generated when install vim. override _vimrc .vimrc using under *nix, or delete mswin.vim.


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