Works fine here.
Probably not the issue but, if you've had your machine on for a couple of weeks without a restart, millisecs() starts returning negative numbers. Stick an abs() on the front of your delta formula and see if that does anything.
Stevie
Probably not the issue but, if you've had your machine on for a couple of weeks without a restart, millisecs() starts returning negative numbers. Stick an abs() on the front of your delta formula and see if that does anything.
Stevie