I pasted a Screen capture into the message but it is missing now.
I pasted it again but I will type it in too. When I click on update in my purchases I get the following message:
"You have updates available for other accounts
To update this application, sign in to the account you used to purchase it."
I don't have another account. The only thing Ihave done since January is change my password.
By the way, I have OS X 10.7.5. I was trying to download Mountain which I purchased a few months ago when I first noticed the problem. Apple iTUnes/App Store support help to fix the problem with Mountain Lion so I could download it but am still having this problem with other updates.
Basically, I get the above message when I click "Update" I my purchases.
I haven't had a chance to check exactly what apps are having this problem but several are not apple apps. The item that originally identified this problem was an Apple file. I was trying to re-download Mountain Lion. I kept getting the same message. App Store Support helped me with that as they removed it and then placed it back in my purchases. That worked. When I told them I was having the same problem with trying to update other purchases, the said I would need to contact Apple Support or post in the Discussiond Area. So here I am.
By the way my profile shows one thing but I am running OS X 10.7.5 Lion.
Try indexing Spotlight > NGPixel » Mac App Store – “You have updates available for other accounts” bug
Then restart your Mac.
If that doesn't help, quit the App Store if it's open.
Launch iTunes. From the iTunes menu bar click Store > Sign In
Then back to the menu bar click Store > Authorize This Computer
Quit iTunes. Launch the App Store. See if that made a difference.