Alright, the ACOG works for the M16 but on the SIG 551 i've got that black splotch right over the crosshairs.. (which has resulted in many a time where i've had to use the laser to snipe.. which is actually pretty funny because most of the time the guys don't notice my dancing dot until its too late^_^, I've also become really good with the sig's irons). I know this problem has been addressed, but I believe it was with all the scopes... this seems to be just with the sig. I'm running OpenGL on a TnT 2 card (viper v770 ultra, yeah yeah.. its old). I just switched over to OpenGL recently because it looks better in 16bit color. Just wondering if anyone could provide me with a nice quick fix. Thanks..