I just received my new DSE901 kit today. I have followed all instructions. I am using a well charged battery. I have stood the atomizer with cartridge upright for several minutes to allow the juice to drip to the atomizer. Yet, when I inhale---nothing. Now if I take quick, short puffs without inhaling, vapor is created. Yet when I attempt to inhale as one would when smoking, no vapor. I have tried two different batteries, and several cartridges. It seems as though the atomizer is OK as it does produce vapor in those quick puffs. Has anyone else experienced this? What am I doing wrong? I have another model, the Smoking Everywhere. While I was not terribly happy with its perfromance, I certainly never had this problem.