Instructions. Press and hold the Function (Fn) key on the Dell Studio keyboard. Press the right-arrow key to activate the backlit keyboard. Press the right-arrow key again, still holding down the Function key, to toggle the keyboard through its three illumination modes: full intensity, half intensity and off.
By Ross Bonander, November 05, 2013. Night sweats, unexplained fevers and sudden weight loss belong to a generalized set of symptoms known as B symptoms. However, night sweats can occur whether a person has lymphoma or not. Combined with other symptoms, a clinical exam and some scans, night sweats can indicate Hodgkin's lymphoma.
Night sweats, also known as sleep hyperhidrosis, is the occurrence of excessive sweating during sleep. The person may or may not also suffer from excessive perspiration while awake. One of the most common causes of night sweats in women over 40 is the hormonal changes related to menopause and perimenopause.