The capacitor blowing may be cause by a manufacturing defecting in the capacitor or some other problem elsewhere in the monitor. Just blindly replacing the capacitor may cause further parts to blow.

As you don't know much about electronics it is your best bet to get somebody else to have a look. The voltages in a monitor are extremely high and can be dangerous if you're not careful.

Sorry, not quite what you want to hear but it's not safe to play about with the internals on a monitor if you don't know what you're doing!

- Trevor