One of my Macs had a hard time locating the MobileMe 1.1 Update. I had repeatedly been to Software Update, with no avail. My iMac only used my .Mac / MobileMe account for the iDisk and Back to My Mac features. On a whim I decided to open the .Mac preference pane and within a few moments a MobileMe update appeared and linked me to Software Update. Now Software Update is showing the package. I’m not 100% certain of the reason and I’m not in a position to replicate it. But, if you are having trouble getting Software Update to find the MobileMe Update 1.1 then try clicking around in the .Mac preferences for a minute.
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