I CAN NOT open Iphoto with the new Mavericks????

Hello Kevertjes,

Thank you for the question. You may need to update your version of iPhoto for it to be compatible with OS X Mavericks. I recommend checking the Mac App Store for software updates for iPhoto:

To manually check for app updates, choose Apple menu > Software Update.

OS X Mavericks: Install, update, and uninstall apps

http://support.apple.com/kb/PH14299

If your original version of iPhoto was installed from a disc, you may need to associate iPhoto with your account as outlined in this article:

OS X Mavericks: Updating disc-installed versions of Apple apps via the Mac App Store

http://support.apple.com/kb/HT5975

Thank you for using Apple Support Communities.

Best,

Sheila M.

Hi Kevertjes,

Thank you for the update. I recommend verifying that you are signed in with the same Apple ID associated with or used to purchase iPhoto on the App Store under the Store menu.

If you are signed in with an alternate Apple ID, I recommend signing out of the App Store, signing back in with the correct Apple ID, and then trying the update again:

Sign out

Choose Store > Sign Out.

Sign in using an Apple ID

1. Choose Store > Sign In, or click Sign In in the Quick Links section. The Quick Links section is located in the right part of the window shown when you click Featured, Top Charts, or Categories in the toolbar.
2. Enter your Apple ID and password, and then click Sign In.

Mac App Store: Sign in and out

http://support.apple.com/kb/PH11499

All the best,

Sheila M.

Hi Kevertjes,

Thank you for the additional information. Due to the nature of your issue or question you may find more information by using another one of Apple's support resources - https://getsupport.apple.com/GetproductgroupList.action

All the best,

Sheila M.