Russ - thanks.

I have never heard (or at least never processed) that you shouldn't enter the roundabout when somebody is in either lane approaching you - that should alleviate the problem (If we can get everybody to do it

)
KathyI's rules are good, too. - if nobody's near you when you try to turn, it's pretty hard to get clobbered...
As I think about this, I think in the future when I want to go straight thru the roundabout, I'm gonna try to be in the inside lane. That will force me to use Russ's rule about not entering when either lane is occupied and will give me the option of making another revolution with no worries if somebody does come up beside me and I'm not feeling good about whether they're gonna exit with me or keep going around...
I love it when a plan comes together