App Store icon erroneously shows updates pending
On my iMac, the App Store icon in the dock shows that there is an update to be downloaded, as follows:
... but when the App Store app is launched, there is nothing waiting to be updated, and the icon clears:
I only purchase from one Apple site (Japan), but also often access US and UK sites for freebies.
However, as soon as I quit the App Store app, the alert reappears.
Separately from this issue, I have a problem with iPhoto 11 (ver 9.1.1), which I upgraded from iPhoto '08 via the App Store.
While searching the pertinent discussion pages, I discovered that iPhoto is now up to version 9.1.5, but all attempts to update this app via the App Store fail.
After downloading the update manually from http://support.apple.com/kb/DL1411, it seems incompatible with my App Store downloaded version!
So my questions are:
1) How can I clear that "Update pending" alert from the icon in the dock?
2) How can I upgrade iPhoto 11, which I understand must now be done via the App Store?
Any help with either aspect of this query much appreciated.
... Tony
iMac G5 (Power PC), Mac OS X (10.6.8), 250 GB HD / 20" screen