The function and appearance of the ColorQuest XE indicator lights are described here.
If your indicator lights seem to flash inappropriately, such as when you touch the front of the instrument, there may be a slight grounding problem within the front cover. This will not affect instrument operation, but may be fixed the next time your instrument is serviced. Be sure to mention the problem to your service technician and tell them you need a ground wire installed.
If additional assistance is required, you may contact HunterLab.