I had a dual-link Bizlink adapter for a long time, and it would always randomly flash (pretty much every day). I've had the single link adapter for a few days and not a single flash yet. Only problem is that it's shorter so I had to buy a longer DVI cable
As long as running as yer 1920x1200 or less in resolution, this single-link adapter is the part to get, and at 1/3rd the price is even a better deal!
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Single Link on top
http://www.mysterybyte.com/part/16356/
Dual Link on the bottom (note mine is Bizlink not Accel)
http://www.mysterybyte.com/part/16147/