Two new HP ZR2740 monitors cannot be set to 2560 X 1440 resolution. Drivers from disk installed. Windows 7 home premium 64 bit. One monitor shows the above resolution but cannot be changed from 1780X720 and the other does not list 2560X 1440. Any thoghts on getting the resolution set properly?
Display card is ATI Radeon 5570 with 1 Gb ram.
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