You may get a warning from Vista about compatibility with CS2. I think this is leftover from pre-release days where there were issues with Vista's desktop windows manager (the thing that gives you transparent frames, etc.) You can tell Vista to not warn you about this again. I have not seen any actual problems running 9.0.2 (the last update) under Vista 32 or 64 bit. I ran that way for more than a year before upgrading to CS3.
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Re: Lightroom and PSCS3
2008-03-04 by goldner_jeff