I want to verify my account, but I have no sucessful transactions in the previous version...., through Bitcoin-OTC account, a good history of CoinPal....
Is any other way to verify?    

Backend error - what this about (crach in GUIminer v2011-05-01)

Please, modify XFX Dual GPU HD9570 Black Edition For Sale...
5970...

mmm... well the cross of 2*5850 has the same computing power...

I thinked about this card too, but the lack of cooling power (93 degree of Celsium at Crysis bench) has stoped me (there was an card offer for about 400$)...but if you have a watercooling system...

By the way, a have a proposition of new Powercolor HD6990 (4GBD5-M4D 4 GB GDDR5) for 300 BTC - what will you advise?

I don`t know about other phoenix versions but it seems that new gui miner has similar speed.

syntax - "vectors=on" or just "vectors"?
overclock - @850/1100 or higher?
 

From 266 mhash to 296 mhash - not bad, not bad !