Charset - apostrophe turns to question mark in webpage

hi guyz,

i got problem with my site, its was pages were running normally when I uploaded it to the first hosting company. now that we had transfer our hosting to another company, some texts on our page turns bad.

  1. apostrophe turns to question mark
  2. buttons on list turns to question mark
  3. more…

i already put this on my header page
<meta http-equiv=“content-type” content=“text/html; charset=utf-8” />
but it appears the same…
i changed apostrophes (’) to ’ for unicode symbol, now it would be a lot of work to me if i’ll do a global replacement of apostrophes on all of my webpages…
is there any effective way to make other symbols appear normally??PLEASE HELP…need quick reply.thanks