IDE freezes at upload

I've searched the forums, and although this question has been asked before, I can't find any information that helps in this case.
When I try to test the board with the Blink example, I hit Upload To Board and the IDE freezes, the only way to stop it is to either kill the process or remove the USB lead.
I'm using the Freeduino, so the board is set to "Arduino Diecimila or Duemilanove w/ ATmega168" and I've triple checked the COM port number.

The output from the command line is:

C:\arduino-0015>run.bat
Stable Library
=========================================
Native lib Version = RXTX-2.1-7
Java lib Version = RXTX-2.1-7
Binary sketch size: 976 bytes (of a 14336 bye maximum)

Then it freezes and doesn't respond. After removing the USB lead I get this:

avrdude: ser_send(): write error: sorry no info avail

Any help would be massivly appreciated, I'm stumped :-/

Can you tell us what machine and OS you're using?

I was using a 866MHz, 256MB Ram Pentium III on my first test, but I've since changed to a new computer which runs at 1.6GHz, with 1256MB RAM.
Both running XP Professional, both with the drivers installed, both risking my boot through the front of them in a minute. :smiley:

Thanks again.