CS5 Update Manager keeps trying to install old updates
Yesterday I installed CS5 Master Collection on a replacement computer and used "Check for Updates" in Photoshop to download and install the latest versions. That went fine, but only updated Photoshop to 12.0.4 and Illustrator to 15.0.2. I manually downloaded and installed the PS 12.0.5 and AI 15.0.3 updates and all went well (or so I thought) - PS reports 12.0.5 and Illustrator reports 15.0.3 in their "About" dialogs.
Tonight I found an Adobe Update icon in my tray and clicked it. It tells me it wants to install PS 12.0.4 and AI 15.0.2 (one patch level back on each). I let it run, figuring it would notice that everything was up-to-date. It didn't - it downloaded and tried to install those updates, reporting Update Failed for both. If I check for updates again, I am again offered those two updates.
I found this old thread http://forums.adobe.com/thread/714043 which discusses a similar issue with Dreamweaver. I tried deleting the C:\Users\username\AppData\Local\Adobe\AAMUpdater\1.0 folder and rebooting as shown in that thread, and it didn't fix the problem - the update manager keeps trying to download and install un-needed and out-of-date updates.
How do I get Update Manager to understand that these updates have already been applied? I don't want to simply disable update checks for these products, as I'll miss any future updates. And I'd rather not deactivate and uninstall all of CS5 Master Collection and reinstall if I don't have to - that seems like using a sledgehammer to squash a mosquito.