I have been using 2010 LT for a few months with no issues, but suddenly I cannot edit text, dimensions, and lines as I did before. I used to be able to select the item I wanted to edit, then right-click and copy, paste, scale, etc. To edit text, I used to be able to double-click the text and I could retype what I needed. Now when I double-click on text, nothing happens. It appears locked, even with multi-line text I had just created. When I select dimenions or lines, I can no longer right-click to make any changes.
Anyone else have this problem?