How to find out when all the necessary applet classes are loaded?

[Hordeum]

I have an applet that sometimes doesn't start up right if you're accessing it for the first time. I was just wondering could the applet start operating even though all the necessary classes wouldn't yet be loaded? And thus failing?
And is there a way to find out when all the classes are loaded, to give the applet the permission to proceed?

[Norm]

The browser and ClassLoader should take care of loading all the classes needed. Are you sure that's your problem? What is the error message(s) you're getting?