How to set the output size in animation ??

[zonepatcher]

my animations keep coming out as 1.3"x 2.5"..finished size of animation....it's like the scale is stuck on 2:1 ??..I set my size as 7"x 5" in the main program and also in the animation settings..but dey keep coming out too small ..wrong size...can someone pls explain what I.m doing wrong...I can't figure it out...Thank You !

[zonepatcher]

looks like maybe I figured it out??....I set my animation size at 17"x 15" and rendered a 8.9"x 7.5" ...but,  why ??...does anybody know how to set output size in animation ??..will take a while..but, gonna figure dis out ..it's like it's scaled at 2:1 ratio output ??..Thank You

[bib]

http://www.fractalforums.com/fractal-related-links/change-size-in-mandelbulb-annimation/msg39667/#msg39667