I seem to have the same problem, except its worst. For me I only see a black rectangle instead of sights (I?m new to using forums so I don?t know how to post images yet). Where the above pictures have messed up sights, mine are filled solid black. It makes it impossible to aim or see where my shoots go.
Vehicles: LAV-III, LAV-25, BRDM 2, and BTR-60.
Servers: All
Settings: Tested all
Version: .87(whatever was pre.9) worked, .9 untested, .91 has bug
Graphics Card: Nvidia Geforce 5700? (Unsure how to check but I remember seeing it one time)
I really hope a fix is found since I enjoyed using armour the rare times when I get to play.
Had this problem with ATi radeon 1950, settings low/medium (dont recall precisely), now on new computer with GPU ATI HD 5650 dont have this promb, running all on high.