Error: Ran out of memory (Final Cut Pro)

[DetroitRockCity]

So lately when I am rendering my projects, or exporting them via quicktime conversion, I keep getting an error. It states only "Error: Ran out of memory".
I am editing HDV 1080 video.

Now, I have 6GB of RAM. I have about 400GB left on my 1TB Media drive and around 200GB left on my main hard drive.

Does anyone know why my mac pro is doing this?
This is happening on final cut pro 7

 

[Airforcekid]

It sounds like you need to upgrade your ram. But first you should check to make sure nothing is running in the background kill ALL flash video. 6GB should be enough but most reccomend 8-12GB for final cut in true HD.

 

[DetroitRockCity]

Well, what I don't understand is that it just started doing this. I have been fine since September when I bought my mac pro. Before that, my Macbook Pro had been doing the same kind of work but never got this error. And that only has 4GB of DDR2 RAM.

 

[DetroitRockCity]

Just as an update, I trashed my FCP preferences and this has not happened since. Hopefully it will never happen again lol.