Wonky CS4 goto commands with Windows 7.0

Question

I have a big problem I'm hoping someone can help me with.  I've been using Flash CS4 with ActionScript 3.0.  They just upgraded my computer from a Windows XP to a Windows Professional 7.0 system.  On the new system, whenever I compile an SWF (select Test Movie or hit ctrl enter),  the goto commands go wonky.  The goto commands work fine with any old SWFs that were compiled with the old system, but not with any SWFs created with the new system.  When I add a listener to a button, sometimes it works, sometimes not.  The button simply goes dead, nothing happens when it’s clicked.   When I add a goto command to the timeline within an IF command, the playback stalls.  I’m hoping someone is familiar with this problem.  Maybe there’s a plugin I can download that will fix an incompatibility with Windows 7.0. 
Here’s the script I use to program my buttons.  This programs a back button called “BTN_BACK” to send the timeline to a previous frame labeled “LASTFRAME.”  Again, this worked fine with Windows XP system, but not with 7.0
BTN_BACK.addEventListener(MouseEvent.CLICK, BACK);  
function BACK (event:MouseEvent):void
{              SoundMixer.stopAll();
                event.stopPropagation();
                gotoAndStop("LASTFRAME ", "SCENE");

Answer 1

uninstall and then re-install flash pro.  you don't have to uninstall your settings.