I've had a new Cateye double wireless on my Roubaix Comp for several weeks now with no problems whatsoever. My bike & the Cateye stay in my garage not my office so the computer/fax is not a problem. I've ridden through a number of traffic lights without any bizarrre readings but most of my riding is on country roads & its all during the daytime. I think its a great unit & the installation was straight forward but I did add a cable tie to the speed sensor to give me a little more clearance between the magnet and sensor.