I have Dell studio 1537 also with Bluetooth stereo headphones which name as platronics pulsar 260. I have found a problem in Bluetooth, whenever at the time of listening songs, from my system Bluetooth gets disappeared. Bluetooth shows it’s on but nothing happening with wireless switch. My operating system is windows 7 and I have mini card driver also I have BT audio driver. I want to sort out my Bluetooth problem please help me.