Hopefully someone from Autodesk can address this. I ran the 64-bit version of AcadE 2009 just fine, but Vista crashed during a training, which I was conducting. It turned aout to be an incompatibility of 64-bit Vista and the HP laptop it came on. I abandoned HP and Vista it and went back to trusty Win XP Pro on an IBM Thinkpad. I have had no problems since. I've have never had an issue with F/E/R in any version though. But this 64-bit technology is still going through the debug stages. I don't trust it yet for my important work. Perhaps someone at Autodesk can help you out with regard to Win 7.
Doug McAlexander
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AutoCAD Electrical training and implementation support
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