Update: My SD is started to fail big time now. Not only is it scrambling the time values, (but it is keeping the date ok).it is now dying mid reading, in that the strip is recognised when being inserted, it goes to the blood symbol showing as normal, and it starts the coundown as soon as I feed it a blood sample. When the timer finishes, then the screen blanks and no symbols are shown, no reading value displayed. This is with brand new batteries too, so not the battery to blame. Not yet a hard error, so I can usually retest with a new strip, but this indicates a death spiral is not far off. It is also reading about 2 mmol/l higher thn my other meter, except on occasions when it suddenly reads lower (it has up till now been very consistently and steadfastly 1 mmol/l high compared to any other meter I parallel test with (NEO, XCEED #1 XCEED #2)