mistycandy, sorry to here you are still having problems. You don't indicate in your last post whether or not you tried any of the suggestions that we gave you already. We would hate to give you repeat advise.
The users on this forum are just that, users. We don't work for x10. If you have a problem you can do 1 of 2 things or both. You can call x10 customer support or you can try to be friendly on this forum and have the users here try to help you with your problem.
When you say you've had this system for 7 months, and you've only posted 3 times and those 3 times are just rants and raves about how you wasted your money, then no your probably not going to get your other two cameras working and you should just put it all back in a box and go spend another 300 dollars on something else.
That way when you can't get that to work either you can go to their forum and start all over again. I am sorry you can't get your system going but your not helping us help you.
My dad told me you always have two choices when you wake up and get out of bed. 1. you can happy 2. you can be grumpy.
Sorry if I sound a little front with you but several users here have tried to get you to calm down and state your problem in DETAIL. But for some odd reason you refuse to do so. That kinda tells me that you might be some kinda spammer. There must be a hundred posts just like this that have already been worked on and solved. Have you tried looking and searching for the same problem?
So...... If you want help please tell us everything about your problem and we will surely find a solution for you. Tell us what software, what kinda of cameras, what kinda transceiver, what there doing what there not doing, we already know you have a router which could interfere but you don't have to turn it off. Most routers have a user setting to change channel that they use. So just slowdown take a sip of cola and explain whats going on in detail. We don't give up until you do.