Situation: Part at KATL B738WL AACold & Dark StartupBatteries OnAPU ONIRS ALIGNINGOPEN CDU Initialized to KATL, IRS SETPlugged in plan THRSR5 LUCKK SZW FOOXX3.19B SELECTED RWS 27DEP 19R ARRMAXIMIZE PFD TO REVIEW FLIGHT LEGSCDU TO LEGS FOR A STEP REVIEW FSX FROZEN....EVEN PC FROZE.... CTRL+ALT+DEL....

For all freezes you need to report this in http://forum.avsim.net/topic/342572-if-you-get-a-freeze-we-would-like-to-hear-from-you/

Just re-did the same identical flight, no problems this time, the only difference is that this time I did NOT used the FMC to call for ground support vehicles, the last time I used them, it also froze... maybe is something in there...