I’m in PAL land too and I’ve seen sparkles and drops.
But I don’t use a Kona3 not yet. I’m glad your problem is solved by by-passing the HD-link. But I don’t think its your HD-link. Nor is it anything to do with ref. Though I’m glad all this made you get one, which is really what you should have always had.
Also, you should have tried all this with an NTSC project and an NTSC movie before surmising the ‘only-PAL’ thing.
Anyway, I’ve seen sparkles and drops in plenty of LCDs (never on CRTs) connected via DVI-D. Its a DVI-D thing. It happens with…
1. bad cables of short length.
2. average cables but of long length.
3. bad cables of long length.
4. bad connectors on LCDs.
And I’ve seen this problem on LCDs connected to…
FCP
Avid Media Composer
Discreet smoke/flame (linux and Irix)
Quantel eQ/iQ
I’ve even seen an issue where we saw sparkles only when working on a movie in Shake but that same movie lookes fine in QT player outside Shake.
It almost always goes away with either cable change, LCD change, length change, and in our case, extender change.
I saw this post only now else I’d have warned you to focus on the LCD and things near it first before changing your MacPro, Kona3, maybe even your house and car if Bob hadn’t come along.
Incidentally I work in a facility with almost a hundred Macs – FCP, Avid, Shake, PixelFarm…like quantity of PCs – Avid, 3DsMax, smoke, flame, lustre, Quantel eQ, iQ. And I’ve seen a ton of sparkles. Happens all the time.
Neil
FCP Editor, Mumbai, India.
Completely PAL.