Vim highlighting annoyance

I was using vim about an hour ago doing abit of python (i only just started using vim). And I think i typed something wrong, and all of a sudden the letter i is always highlighted. Turning syntax off and on didn't work. and i couldent find the solution online.

Thanks in advanced.

Maybe you accidentally searched for the letter 'i'. Try entering ':set nohlsearch' to turn off search highlighting. If that works, you'll have to edit your ~/.viminfo to remove the information about the last search term.