Outrunner wrote:
I've got a Macbook Air, my first Mac (though I had used them before). It's been fine up to now but about a week ago it's started becoming extremely sluggish. Youtube is almost unwatchable and Skype video calls are frustrating. And now even web browsing seems to be a little slow.
I've had it a couple of months, not installed anything new (aside from software updates), barely used the HDD (saved a few Word Documents and some songs). Is there anything I can do or
am I best off reinstalling OSX? It's frustrating and kinda souring my first experience of owning an Apple computer

Whoa there... you're not using a pc mate.
First things first, you say you've barely used your HDD so I'll assume you have plenty of space left on it?
Right... when did you last do a software update? Is everything up to date? Check by going...
> Software Update.Once that is all up to date you want to do something called repairing permissions. Most apps/programmes that you install on a mac use something called the Apple Installer, and when it does that your mac stores a little receipt of how your permissions(settings) should be. So repairing permissions is always a great way of making sure things are in the right order.
Quit all your programmes and make sure nothing is running bar the Finder.
Go to your Utilities Folder via
Go > Utilities and you're looking for a programme called
Disk Utility.

It will look something like this.

Select your main HDD
(1) and then click Repair Disk Permissions
(2). It could take a while depending on how long your HDD and how full it is.
Once you've done that, do a restart and see how it feels.