I have recently bought a new Dell Inispiron 1420 laptop which came pre-installed with Windows Vista. The speakers on this laptop is not working at all, even after trying all the alternative methods that i have used to troubleshoot it, but headphones are working fine. I went into Control Panel and then Sound and then Audio Devices and everything over there seems to be working fine. When i open the speaker tab then it was displaying that "This device is working properly", but even though the speakers are still not working. When i checked the sound drivers in Device manager then it was also not showing any yellow exclamation mark. Is there any fix to this problem?