At work I get lumbered with sorting out the office pc's as I ahave a basic knowledge. I usually manage to sort things out but on this occasion I'm stumped. Im not really a networking guy. We have about 15 pc's all connected via ethernet to the bt router. Theyve always been able to see each other and also the nas drive we use but this week after adding a new pc I am unable to see anything apart from 2 pc's on every one Ive checked. Thats not such a problem but I do need to get the new pc to see the nas drive. Ive mapped the drive to all the other pc's but cannot fathom how to see it on this one. Ive googled and tried a load of fixes with no avail , however I havent asked this question anywhere else. Hope that makes sense.