ipone 4S not connecting to itunes latest version 11.4
Somehow my iPhone 4S, version 9.2, does not want to connect to iTunes, latest version 11.4. I checked the software update, and to make sure downloaded it again, but to no avail. When I conect the iPhone, it keeps saying 'The iPhone 'iPhone of Richard van Vugt' cannot be used, because for this a newer version of iTunes is required. Go to www.itunes.com/nl/ to download the newest version of iTunes.
But I already have that!
What can be done to solve the problem?
By the way, my Mac is an Intel 4 Quad-Core version 10.6.8
PowerMac, OS X Mavericks (10.9)