Schedule Tasks not auto-running?

For some reason, I just noticed that my scheduled tasks are not running after installing plugin and transferring to VPS. I have to manually run them.....anyone else experience this? What should I do?

Solution for anyone who may have mistakenly removed this from the footer, you'll need it:


<!-- Do not remove $cronimage or your scheduled tasks will cease to function --> $cronimage <!-- Do not remove $cronimage or your scheduled tasks will cease to function -->