Can't upload to Arduino BT

Hi!

I have trouble with uploading the blink program to my Arduino BT. I'm running Arduino - 0013 Alpha on a Windows Vista SP1 computer. I have not been able to upload anything yet. This is the report I get:

"C:\Program Files\Arduino\hardware/tools/avr/bin/avrdude -CC:\Program Files\Arduino\hardware/tools/avr/etc/avrdude.conf -v -v -v -v -pm168 -cstk500v1 -P\.\COM5 -b19200 -D -Uflash:w:C:\Users\ei0haan\Documents\Arduino\Blink\applet\Blink.hex:i

avrdude: Version 5.4-arduino, compiled on Oct 11 2007 at 19:12:32
Copyright (c) 2000-2005 Brian Dean,

System wide configuration file is "C:\Program Files\Arduino\hardware/tools/avr/etc/avrdude.conf"

avrdude: ser_open(): setting dtr
Using Port : \.\COM5
Using Programmer : stk500v1
Overriding Baud Rate : 19200
avrdude: Send: 0 [30] [20]
avrdude: ser_send(): write error: sorry no info avail"

It feels strange that there are \ in the begining of the path and / at the end of the path. Is this what's causing the error? How do I change it?

Thanks for helping me!
Anders

I noticed that I get the same error message both when the Arduino bord is connected to power and when it is not.