I have wordpress multisite up and running on my main computer but am having big problems with my laptop. I am able to get a single site working but have tried with both MMAP and Bitnami and in both cases, after following every aspect of the installation process, I cannot get multisite to work. Bitnami got me closer to the goal but once the sites are created in network settings, they simply do not open (404 error). It will allow the main site to work. This is very frustrating as I need to develop sites for work. Please help!