It looks like you have Panel Edit mode switched on.
On the Panel towards the right side, click the small up arrow and slide the switch for Panel Edit mode to off.
Switch ON:

- Panel edit mode on LM14 Cinnamon.png (8.24 KiB) Viewed 203 times
Switch OFF:

- Panel edit mode OFF.png (7.27 KiB) Viewed 203 times
Desktop: C2D E6400 / Asus P5LD2SE / 2GB ram / Asus GeForce 210 / 320GB (WinXP) & 1TB (Mint - various)
Laptop: Asus A53E-SX1455V - i5 2450M / 4GB ram / Intel HD 3000 / 500GB (Win7/Mint 14 Cinnamon)