I haven't made my mind up about the 2900 yet, but I do find it an interesting part, and look forward to seeing the effects of maturing drivers.
I wholeheartedly agree that you shouldn't base an evaluation of a product on one opinion or review, but [H]'s numbers are as valid as the others...
Brent,
Why are your results so different from Firingsquad's numbers?
http://www.firingsquad.com/hardware/lost_planet_demo_directx_10_performance/page6.asp
1600x1200 4xAA/16xAF
HD2900XT = 32.4
8800GTS 640 = 28.7
"The Radeon HD 2900 XT continues to hold an edge over the GeForce...
Aha!!!
I had/have the same problem on my P4 2.4B @ 3.13GHz/ Asus P4PE system, although only intermittently. I swapped around my power connectors so that the card had it's own single feed (to the 2 Molexes) from my Antec Neo 430 PSU and things became more stable. I think it may be power...