So I've had my iMac (21.5 model, middle model of the three, no upgrades) about 10 months and hardly used it as I found it slow etc and I just assumed I should have bought a faster model .. anyway discussing it with friends several weeks back and they said that shouldn't be the case and there are clearly issues and to get in touch with Apple etc Anyway, haven't spoken to Apple yet (booked a service call but they never called at the scheduled time) but today I clicked and logged in to the Guest profile and opened up both Safari and Music and they opened really fast. On my profile Safari takes about 40 seconds to open and Music about the same possibly longer. So it sounds to me like there is something bad/corrupt in my profile/login? How do I resolve it? Can I delete my profile without deleting the music thats on the drive? I was going to back it all up, but only drive I have with a spare 130GB for music back up is 1/2 full drive and Apple wants to format if used to back up. BTW, should add its running El Capitan beta but the issue has been there since day one when I got the machine (this it had Mavericks) and as soon as it started up I upgraded it to Yosemite. Installed El Capitan beta when it came out in the hopes that would fix it. Suggestions?