Having searched the Wii for a pot to adjust the laser, finally found a quick solution. This video shows how to get to the laser adjustment pot easily.
Please feel free to have an experiment to see if a *slight* adjustment on this pot will fix any DRE issues.
I'd recommend 1/16 of a turn at a time, anticlockwise (although it could be the other direction for you). Please report any success or failure in trying this :)
I cannot be held resonsible for any damage incurred, do it at your own risk.