Yahoo messenger for Mac stopped displaying Real names, showing only ID's
I recently developed this issue: my YM client no longer wants to display the Real names of my contacts but only the ID's. That is quite frustrating given the fact that it is almost impossible to remember everybody by their ID's.
I had seen another post of a somewhat similar issue with iMessage and YM, and I tried the solution given there: Go to System Preferences>Security&Privacy>Contacts and there I unchecked the tick from Yahoo Messenger. After doing that, my YM client behaves strangely: it gets stuck on "Connecting" yet people are able to message me (obviously always seeing only the ID). As soon as I check back the YM client in Contacts, it works again (that is being able to see the contact list and all).
If anyone faced this issue before or heard of it, please let me know.
PS: It seems that now it only works if I leave that box un-checked (still seeing only ID's)...very weird
MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)