This is my only nokia, but finding another charger would be a good idea to try out, thanks. If the phone is still struggling to sometimes update, ill still be stuck between believing that the problem lies either with the phones miniUSB connector (as in my link), or phone software (eg the last installed update causing the problem, or some other program installation).

With the yellow charge light flickering fast (bottom left) when I moved it slightly earlier on (with the screen still on), it does sound like a physical issue. Plugging my phone in right now, and I havent had the "not charging" message from earlier on today (yet), my phone is seemingly now recognising the adapter, and the green battery icon (that i no longer trust, lol) is moving up and down. The yellow charge light is not coming on, although im assuming this is only because im using the phone right now, and the yellow charge light should only come on when the screen display is not on?

The phone seems to be more likely to charge properly via its official mains adapter when the n900 is switched off, im now wondering if this could be part of the cause or not, ie a bug, but I think when I charge next, Ill try it via the pc connector (I think it uses the headphone socket on the n900), if it stops again or I get the "not charging" message, ill assume its definately a problem relating to the phones last official update.

thanks