I aggree! it would REALLY help if you catch her, that way she understands that she isnt supposed to pee and she'll get in trouble if she does! does she know how the doggie door works? maybe everytime she has to go out, or you take her out, try and use the doggie door, and show her how to use it! maybe she hasnt got the full understanding of the door! If you cant keep a close eye on her, def. keep her in her crate but every so often i'd just check to see what she is up too! if you notice alot of sniffing around or just wandering in circles or just moving around an awful lot, that normally means they have to go! so get her use to goin outside, i normally say something like "lets go potty, or potty time". that way they start putting the words potty with actually going potty! kinda just like teaching sit, it's a repetative thing! good luck!