After installing Yosemite on my MacBook Pro I got a message saying I was running out of application memory. First time I have ever seen such a message. Any ideas? Thanks. Qball
A fresh install is always going to hum like new compared to an upgrade. I, and others, will often recommend a fresh install (after backing up) to clean up old cruft and prevent any old software from causing slowdowns or issues.As a postscript, I backed up my files to a hard drive and did a clean reinstall. My old computer is now humming, as good as new.