Ya know, my account just above was after testing an arrival with the 748i from a saved flight which begins just before the ToD, about 120nm to the northeast of Honolulu, down across the CHK arrival and back around into the 8L ILS. I now recall, that I had just finished completely rebuilding my rig, upgrading from WinXP_x64 to Win7_x64, and noticed the same issue before and after the upgrade. That's when I stopped on the runway to observe the flicker for quite some time - I was testing the rebuild using a saved-flight from about 100nm away, which was origionally created from a KLAX to PHNL flight a month or two earlier.