grek1> You shouldn't be able to see the caret and selection at the same time, clicking should remove the selection and place the caret, using the arrow keys should remove the selection and make the caret appear and probably other stuff I forgot since I haven't got my guide with me.
Text editors don't follow these rules in general but that's because of how they are used. Having the caret and selection visibale in writeable icons doesn't even allow you to do anything else, it just confuses (me!). Hope that answers you question
Having checked out the select features database it's not there even though I'm sure I typed it in ages ago.