# CS3 migrating from older .fla

**URL:** <https://forum.kirupa.com/t/cs3-migrating-from-older-fla/255197>\
**Category:** flash\
**Created:** [March 19, 2008, 11:05pm UTC](https://forum.kirupa.com/t/cs3-migrating-from-older-fla/255197 "2008-03-19T23:05:15Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![tishster](https://avatars.discourse-cdn.com/v4/letter/t/90db22/32.png) [@tishster](https://forum.kirupa.com/u/tishster)\
**Post date:** [March 19, 2008, 11:05pm UTC](https://forum.kirupa.com/t/cs3-migrating-from-older-fla/255197/1 "2008-03-19T23:05:15Z")

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Hi,

I just installed CS3 and, am a newbie to flash.

I have .fla (from someone that quit, how fun) that was created with MX2004 professional on windows. I just installed CS3 30 day trial version and, am trying to open/save with CS3. The instant I save the .fla (no modifications), the exported .swf becomes useless. When I run the I get the error message … “a script in this movie is causing flash player to run slowly. if it continues to run, your computer may become unresponsive. do you want to abort the script?” If I hit “yes”, I will get some part of the display and, not the whole thing, if I didn’t save it via CS3.

I’m looking for a workaround or can some one suggest a place I can get flash7/8 or an AS editor (for a mac :)? Or do I need to go back to MX 2004 and, a PC?

Btw, great site Kirupa.

Thanks