Stopping enterfram triggerring COMPLETE?

Gidday

I have a text parser class that freezes the UI, so I'm chunking down the loop into sets of 500 by using enterframe and other code to keep track of where the process is up to. I've used this pseudo-threading code a few times before without any problems.

The difference this time is that  text parser ( var textData ) is called using URLRequest ( I load a txt file into the parser), and the problem is that the enterframe code within the chunking process seems to be triggering the COMPLETE event before the parsing is actually done:

textData.addEventListener( Event.COMPLETE, completeHandler,false,0,true);

Is there a way to prevent the enterframe from triggering the COMPLETE?

Cheers