mecowie :
Thanks to both who kindly replied. I tried using FN + Home and FN + End without success, but this made me think that perhaps the FN key would work with the more usual Control + Home or Control + End combination. So I pressed FN + Control + Home and it worked! Thank you very much - I wouldn't have thought of using the FN key if you hadn't mentioned it.
Yes, the FN "makes up" for not having a full keyboard, but you have the functionaility of it. If you see blue text on any of your keys, it's mostly triggered by the FN key.