Certain Websites not being blocked by K9? HELP!

Hey guys,

I'm a few days shy of reaching my one month goal! While I'm really pleased, I've discovered that certain websites aren't being blocked by my K9 web protection.

It's been fantastic so far at blocking the porn and porn-substitute sites I know of (as well as many I don't) but, for some reason, some sites aren't being blocked despite obviously being pornography and being in my "always block" list.

If anyone more familiar with K9 can help, I'd be very grateful!