****, I have 2 sculpt ergonomic keyboard and mouse set and now they are both useless with windows 10, every second keystroke either doesn't register or lags terribly. Multiple battery changes and the latest driver install Does not fix the problem. However if i type one keystroke every 10 seconds then it's O K A Y...
EDIT.
Seems to be only an issue with windows 10 is ok no with windows 7 x64