. baby oil worked for me as well. I ever so slightly lifted up on a side of the pesky key, (no need to remove the key). I depressed it several times and it no longer sticks. I then gave all of the keys a gentle wiping and the keyboard looks as new as ever. Update: Oill & Air - My same key began sticking once again so I gave it a better treatment this time gently lift one SIDE of the pesky key with the rounded curved part of a paper clip. Let some baby oil drip along the paper clip and get under the key. While the key is still gently pried up, use forced air from a dust remover canister with a long nozzle to clean the space and to move the oil around. Then repeat on the other side of the key......