I was messing around with the panel settings on xubuntu and I accidentally pushed it to the largest size and number of rows. My resolution is 1366x786 and so it filled my screen, trapping my windows behind it. I am running Xubuntu 14.04 and this persists when I log in. Please help!
There is some information at Resetting XFCE Panels to default settings? that will guide you through resetting the panel back to default