Hi, i have a dell m5110 laptop with dual ports (one mic and one speaker). The problem is when i plug in a mic it will detect the mic and everything but it wont receive any sound. For example if i skype my friend wont hear or if i recod a video you wont hear me speking etc... ive tried plugging in multiple mics but it wont work, does it need to be a headset with both ports or can i use separate speakers and mics? Sorry if my english is not the best since its not my native language...