I know there are loads of threads regarding this but here goes. I used Crucial.com/uk and got this: I would like 1GB extra RAM but what exactly do I need? If someone could point that out I'd be much obliged. and is it just a case of putting it in the free slot and re-booting? Sorry for the really basic questions but I've never opened the back of a PC before. I do a lot of Photo editing with Photoshop CS and I have just bought Premiere Elements for video editing so things need a boost. Thanks.