I found the problem!!! Here's the message I received. I'm reposting here in hopes it may someday help someone else:
Couple of points which you can check:
1. Is there any recent change in your machine? (Any new software installation)
2. Change or update in Mouse drivers?
3. Is it only on one...
I've lost the ability to double click on a dimensions and type in the desired value. Please help!!!
If I draw a simple rectangle in sketcher and then hit Select, the dimensions will show up. But when I double click on a dimension to change it, nothing happens. I can't edit the dimension. I do...