Why does lassoing select the whole clip?

This bug has been driving me crazy. I'm using Sonar Professional now, and the bug hasn't gone away. Fortunately Sonar is robust enough that I can find a workaround, but it's inconvenient. I just want to do simple lassoing, and not have to get tripped up half of the time. Is there a setting I can change to get rid of this annoying behavior?
 
Thanks,
Mike

As Steve indicated, this is working as designed so you can easily lasso a bunch of whole clips just by touching them without having to painstakingly sweep every one from beginning to end or Ctrl+click each one. If you want a partial selection you should use left-click with the select tool showing, and sweep the selection. Depending on what all you want to include, you can also select tracks and then select a time range in the timeline or select the range on one track/clip, and then add others by Ctrl+clicking or sweeping through their headers, etc.
 
There are lots of ways to skin that cat, but Lasso is not for making partial selections.

Sorry I didn't make it clear: I'm working in PRV.
 
Yes, it's a bug, and it's inconsistent. I lasso notes in the PRV, and sometimes I just select the notes I've lassoed, and sometimes I select the whole clip. I can't tell what I'm doing differently based on the two results, other than: if I'm just select I couple notes, behavior is as expected, but if I select a bunch of notes from various tracks, then I'm pushing my luck.
 
To see what I'm talking about, try loading several instrument tracks in the PRV, and lassoing.
 
Thanks,
Mike