We just bumped up to CS5.5 and one of the most frustrating things is that when you copy a symbol from one fla and paste it into another and it needs to replace a symbol in the other file, it can take up to a minute (even more a few times for me) to do so. Flash just hangs there. And I'm not talking about big heavy symbols with a lot of content in them, it can be as simple as a clip with a few vector graphics in them.
Does anyone have any insights on how to make this faster? Is there a setting I've overlooked?