I have two computers at home on a wireless network - a Laptop on XP, and My Desktop which was on XP but is now running Windows 7. I had a simple network for file sharing working fine - they are both on the MSHOME workgroup. Upon installing Windows 7 on my desktop, I added it to the MSHOME workgroup. When I go into My Network Places, it sees itself, and also my laptop which is running XP - I can read files from the laptop etc no worries. However, my laptop cannot see my Windows 7 PC at all. All it sees is itself. I have no idea how, but at one stage it was seeing the Win7 PC, but when I tried to access it it asked me for a username and password - I don't have a password set up - and any guesses I tried failed. Now its not seeing it at all again. Any ideas?