My bulbs all seem fine but I have a bulb warning light on the dashboard.  Is there a way to reset this ?

Sometimes it’s a bulb on its way out. Process of elimination swap out one by one or ignore until one actually goes ?

if you have the maxidot, go into the vehicle status and it will tell you (along with when you start up) which bulb is showing a fault. 

i had mine at me intermittently for aaaages about a rear light, but none gone, and then it just went away again.

Have you checked the 3rd brake light ? if enough leds fail it will throw the bulb out warning. As above a bulb about to blow can be enough to trigger the warning.

Sorted now.it was a bad connection on one of the number plate lights