I just opened a new pack of Aviva test strips and have got E7 errors 3 times in quick succession. I could have sworn it also briefly said E6 briefly on the first test failure. Anyone know what is going on? Are the strips 'clapped out' or is it the machine that reads them? I feel gutted because I ordered a shed load of strips off ebay and am wondering if they too will end up useless? Really can't afford this. Anyone have Accucheck's UK (preferably freephone) telephone number handy?