Trace not working in Flex SDK help needed

I am having problems getting trace() to work;
It was working fine but then I just got a new computer and now it doesn’t

I actually transferred all of my files (Flex SDK included) from the old computer to the new computer.

Now trace() doesn’t work.

I was using Flex SDK 3 and thought that maybe it has something to do with the new computer being 64 bit, In an effort to get it working I upgraded it to Flex4.5 but trace still does not work.

BTW I am compiling via the command line and the traces used to come out right in the console. I am using flashplayerdebugger too.

I have googled and tried various things other people have said but still no luck.

Has this happened to anyone else before? Anyone know how to fix it?