Can't open DNG files created with Mac CS5 downloader in Mac CS4 Photoshop

I recently installed CS5 on my mac but I kept CS4 installed as well.  I notice that I cannot open DNG files created with CS5 in Photoshop CS4.  Bridge CS4 shows the files only as icons - no image thumbnails.  I am able to open these same files on a Windows version of CS4.  Is there some plugin for my mac CS4 that will enable me to access the DNG files created with CS5?  Is there a way to use my CS5 downloader when converting my raw files from my camera to DNG files that will make them compatiple with PS and Bridge CS4?

rr3rd wrote:
Is there a way to use my CS5 downloader when converting my raw files from my camera to DNG files that will make them compatiple with PS and Bridge CS4?
Well, yes...but you'll need to modify your DNG Converter prefs to allow for that. You''ll need a recent (ideally current DNG Converter 6.4.1 or above) and click on the DNG Converter preferences and select the correct DNG Converter options. Check DNG Converter 6.4.1 (the current version) and click on "Change Preferences" to be sure select Camera Raw 5.4 and later then make sure CS4 is updated to ACR 5.7 (which is the last version of ACR for CS4) However, the changes made to ACR 6.x really should be adopted since IQ for ACR 6.4.x is a lot better...

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