Im running Yosemite DP5 and finder windows acts weird. It won't remember user folder's settings, I sorted the folder by kind and list view and it won't keep the settings and changes back to icon view if I reboot the system or even just relaunch finder.app. and sometimes it won't remember the windows size I set for it and just change back to a very tiny unusable default size. I've tried many efforts to fix this ****, like reinstalling the OS, deleting DS_store file and something else. And there is another issue I just want to ask for help, it's not related to yosemite. safari won't remember the window height. Yes, every time I reboot the OS safari just got short on its height and eventually it becomes very short. I have to adjust it everytime I noticed it.