If you're considering a re-install, it might be wiser to re-install to Karmic to restore brightness adjustment functionality. The brightness issue isn't related to whether it's a fresh install of Lucid or upgrade to Lucid, it is due to Lucid itself.
I've considered downgrading to Karmic but can't devote the time to reconfiguring my laptop.
David,
If you're considering a re-install, it might be wiser to re-install to Karmic to restore brightness adjustment functionality. The brightness issue isn't related to whether it's a fresh install of Lucid or upgrade to Lucid, it is due to Lucid itself.
I've considered downgrading to Karmic but can't devote the time to reconfiguring my laptop.
That's my two-cents.