i have a windows vista on my home laptop, and i have a desktop pc that has windows xp, i was sharing between the two for months, i just recently redid my vista hard drive(recovery disk) now i can't share between the pc's any more, i have turned on all the settings, the windows xp computer can see the vista pc, but it can't connect to it, the vista machine doesn't see the xp machine at all, someone please help