For the love of god, PLEASE put in an IM History feature! I just logged in and had SEVERAL messages, all of which are now LOST because the application decided to CRASH! So please put in the IM History so anyone else that it happens to will still be able to access those messages when they re-login.
Logged In: NO
Don't forget you can go to your Home/<user name>/.yahoorc folder (have to click View and choose to be able to see Hidden Files), and once there, continue to the gyach/logs directory under .yahoorc, and it will show logs of all your chats. I found this out by simply looking at the little blurb it says at the beginning of a PM window "logging to file Home/<user name>/.yahoorc/gyach/logs/<yahoo friend name>/<yahoo friend name followed by date and a bunch of numbers>.txt, and tracking down that directory as above.
But yes, a more automatic way of looking at logs & history would be nice! :)