Hi there i was wondering if anyone could help, i tried to post on the itaste vv thread but it wouldn't let me as I've just signed up. Any way I purchased an innokin itaste vv 3 weeks ago and have been getting on great with it, however, since yesterday it wont let me change the volts, now it only lets me change the watts. whether i press the plus or minus and the power button it only lets me change the watts e.g P8.0 not U4.0. this is really annoying as the voltage setting its on, is a little high and tastes burnt. A friend of mine who i bought the exact same itaste for is still able to change the voltage and as i previously said it was only yesterday when it stopped letting me change the volts. any help and suggestions would be great, many thanks.