I installed Windows 7 on my computer a little more than a week ago from Windows Vista Home Premium. My home network worked fine, and I was able to connect to the internet, share files and everything perfectly. However, starting yesterday other computers on the network could not see me and I could only see one or two other computers on the network, and I couldn't see the main computer, i.e. the one with the wireless router. When I try to click on that computer in Windows Explorer, the green loading bar starts to fill up, but then a window pops up that says "Windows cannot access "\\(Name of the computer). Check the spelling of the name. Otherwise there might be a problem with your network. To try to identify and resolve network problems, click Diagnose. Error code: 0x80070035. The network path was not found." I click Diagnose and no errors were found. I tried removing the network from my network list and resetting it up, and nothing. What should I do?