If you are use using the right click function on your mouse to edit your reply you may find it not working in the latest update. You may also find that some of the linking icon's are not working either.
The new software upgrade has a default editor to WYSIWYG- what you see is what you get. To get out of that mode click on the togged view icon
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and switch to the old view, then right click and the Icons will work like they did before.
For a more permanent fix go into your profile and change the default.
- Hover over Profile and slide down and click on Account settings.
- When the Account settings window opens hover over Modify profile and then slide down and click on Look and layout.
- When the look and layout window opens uncheck the box that says: Show WYSIWYG editor on post page by default.
- Then click change profile