Software update won't show updates
I have a Mac Pro early 2008, a Mac Mini and and a Macbook Pro. All are running 10.8.1 (as I'm writing this, two of them are being updated to 10.8.2).
The problem is with Software Update. The other two machines work fine, but the Mac Pro will not find any updates. The App Store application always says there are no updates available. But:
- software update control panel says there are. When I click to download them, it opens App Store, which says there are no updates.
- software update run from the terminal (softwareupdate -l) shows updates and is able to download them
So there are updates and the can be downloaded, but App Store application will not list any.
I've tried to disable Little Snitch, but it didn't help. All the computers here are on the same network, so the problem should't be in router settings. Note that App Store does not say server can't be reached - it says there are no updates.
Console shows nothing.
Any ideas on what could be causing this?
Mac Pro, Mac OS X (10.6)