Yep, I get the same junk when using the microwave. 2.4GHz stuff I guess.
Going through floors and walls is no problem.
I purchased my DVD anywhere over a year ago, and it did not use the mouse remote even then. Yes, the Boom 2000 software doesn't work well at everything, but it is not needed for the transmitter and receiver to work. For example, My PC's TV tuner card is not supported, so I can't use the remote to change channels, but I can still start the tuner app normally on the PC, and it is then transmitted to wherever I place the receiver.
You can still set up the x10 Boom software to allow you to use most DVD and MP3 software players, and all of the software functions are controlled not like using a mouse, but like using a regular remote, with play, stop, FF, etc., for the software player, right on the newer x10 remote.
BTW, once you get hooked on x10 light modules, you'll wonder how you ever did without them, and at a cost of almost free doesn't hurt..