Ahhh...the manual...I would never have thought to look there!
On the one hand that makes me feel better that this may not be abnormal behavior...but on the other, I do not understand why accurate metering should be sacrificed to accommodate the monitor. It is a shame that the accurate focus attainable via live view is now susceptible to inaccurate metering.
Now I know that if I am using LV I should pay particular attention to my exposure and not make assumptions. This just goes to show that it is important to learn the shortcomings (or perhaps "quirks" is a better word) of your camera to get the best possible results.
Thanks Dave for pointing this out. It is very valuable to know this (and I would never found it in the manual).