Bad Jagged lines in Flash after reformat

Hello & thanks for looking,

I reformatted my computer last week due to a bad virus,
and everything seemed to be running perfect and
clean until i reinstalled Flash CS5.5 to see that all
my art is jagged and horrible looking.
Before the reformat all the lines were smooth as can be,
and now it's only slightly smooth when i zoom in very close.
The further i zoom, the clearer it seems to become for some
of the lines.
I've tried some basic fixes i found on google
without any effect
(Change view-Full, let application choose
in graphic settings ). For some reason
i do not have a Anti-Alias option in my flash preferences,
so i was not able to change it. I've installed most the drivers
from HP and updated the graphic card, here's system specs in case it helps.

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Windows Vista 'Home Premium Service Pack1
Pavilion e9180f Elite
Intel(R) core(TM) i7 CPU 920@ 2.67GHz 9.00GB 64-bit

Nvidia Geforce GTS 250 Resolution
1920 by 1080 (60Hertz)
-------------
in the example picture you can see how some lines are less jagged, when others are a mess. There's no difference in quality between regular paintshop and Flash cs5.5 for me, if anyone could share some solutions i'd be very grateful. Let me know if anymore information is needed, Thanks!

http://oi52.tinypic.com/rw4392.jpg