This might be of no value to you, but I use AutoCad 2000 and I don't even have to hold CTRL key down to use mouse left click to pick multiple entities. I can select one entity at a time with left mouse click, and each individual entity I left click on after that simply gets added.
This might help you a bit tho...I discovered under TOOLS\OPTIONS\Selection Tab a setting for "Use SHIFT to add selection". I normally have this option UNCHECKED. I discovered that when I CHECK this option, then I lose the ability to select multiple entities with multiple left mouse clicks.
It could be that 2000 and 2002 are different enough that the info I gave you here is totally useless too.