I use Quick Select all the time on LT 2008, and it works well.
What is in your drop-down menu "Apply To:" ?
And the menu "Object Type:" ?
And "Properties:" ?
The 2 that upset things the most, but are very subtle are at the bottom:
And the bullet selected in the option, "How to Apply:" (it sounds like this could be the issue if it is set to "Exclude" - this setting gets remembered from previous uses.)