I'm the only mac user on a network full of windows machines (Mostly windows 7 but one with XP) but I cannot see a single one on my iMac running 10.6.2. I found a guide on here about changing settings on your windows 7 box, which I followed but I still cannot see the machine on my network. Nor can any windows machines see my iMac on them. I think it might be a port issue, are there any ports which I need to open on my router? I have an O2 Wireless Box III (A rebranded thompson router) If it isn't a port issue, what do I do? Thanks a lot.