Vista - Reliabilty Monitor issues.

Hi,

Can anybody help with my problem?

6 days ago my reliability monitor stopped working - more precisely stopped
displaying the graph/chart.
I'm gettting the seemingly common text about corrupt data etc.
I have spent since then trying to fix it.

I have read all the forum advice I can find. No joy.
I've backed up/emptied the PublishedData* & StateData folders as
recommended, waited 24, then 48 hours..it still doesn't display.
I've even copied the contents of my partner's folders into mine, this
actually displays but (obviously) shows her reliability index...I rather
hoped it would update with my errors 24 hours later (!)..it doesn't.

*PublishedData was actually empty when I came to back it up...(lost data?) -
not a problem as I'd be happy with starting again...except it won't!

It *is* enabled and History tab (task Sheduler) shows it running.
Status is 'queued', last run time 'today', last run result '0x0'.

System restore fails at every attempt, several restore points - this is
another issue but prevents me backtracking on Reliability issues.

Any advice gratefully accepted.
[Vista Home Premium w. SP1]

Thanks.
--
I'm not afraid of hard work...
...I just don't want to do any.