>>>>
>>>>All now working smoothly (literally). I'm currently recalculating the average every time a new orientation event comes in. Processor seems to cope (g) and it makes for a very realistic damping effect.
>>>>
>>>>Had a few moments panic but it turned out the device compass needed recalibrating - was getting some *very* strange results beforehand tho.
>>>>
>>>
>>>Sure it wasn't on your way from the pub to home ?
>>
>>No. Just tried it coming back from the pub. Worked perfectly. Just led me into the ditch a couple of times :-}
>
>I see you used the definite article when mentioning "ditch". So I assume it never got you into any wrong ditch, but The Ditch. I conclude the solution is working as advertised.

I used the term because it is *the* ditch with which I am most familiar :-}