Newbie user here.  First time Forum participant.

Having some serious trouble with Solidworks.  I can't seem to delete anything from my models!

When I select something from the screen or from the feature manager, right-click and select Delete (or hit the Delete key) nothing happens.  Then, Solidworks locks up - clicking in a window gives an error ding.  Nothing else can be done until you press the escape key.

What's going on?  Aggghh!

Thanks!

Yitz