I've given some thought recently into basically wiping my hardrive clean, erasing my data and starting fresh with OS X again. I've made many threads about many different bugs or annoyances (nothing major) and don't really find answers even when I know the answers given to me by posters here should work. Along with that, I also get that feeling of wanting to just have a clean slate and rebuild from stratch once every year or so. I haven't ever re-installed OS X (except for the one time when I screwed up on trying to use Boot Camp) and just wanted some advice as to how to (and what to know) go down the road of returning my Mac to the default..everything, basically. I remember when I would get fed up with my PC and format the C drive and just start over all together. Is this the same case with OS X? Will re-installing it from the ground up just erase everything and set it back?..........Obviously I intend to back everything up (planning on using Data DVD's, I used Data CD's switching from my PC) which would basically just include my music, movies, photos, address books and favorites. My friend recomended me to take it to the Apple store, for a check up so to say, however I don't see the need to do that because mostly it's just me wanting to have a fresh plate again and not a major repair problem...Either way I still don't know exactly how to get my computer down there to be looked at, nor no idea who to talk to about that. The errors that I encounter, like I said, aren't big, they're just annoying and I find no answers that seem to work. Such as third party software errors, random changes in booting time, sometimes my time and date randomly disappear from my menu bar, voiceover randomly stopped working all together...Like I said nothing huge at all, but nonetheless I cannot find anything to fix these. Anyway, any advice, tips or anything I should know before doing this? Or should I just not do this and find another means to clean up my computer? I've been told to download programs such as "MainMenu" but without much help on how to use that to clean out my computer...I'm kinda alone in the Mac world basic knowledge, so if there's any chance of anything going wrong I'd like to know. Thanks for any replies.