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#21
No no issues with different versions... honestly I had to find out upfront if you are using a downloaded pirated copy. I have assisted many people with strange issues for days only to discover that their problems are related to the hacked or cracked copy they attained from a torrent!
There are several tutorials here to assist in setting up a Homegroup, and honestly I've setup 3 and never had an issue... try this: Homegroup - Create
or any of the other Homegroup tutorials here:
Network & Sharing - Windows 7 Forums