MAXMSP: serial: specified port not available

I just got my arduino board today and starting exploring it, installed the drivers and got the blink led working.
After that got the led loop working and then downloaded SMS.
I uploaded the SimpleMessageSystem Example 1 to the arduino and opened the Simple Message Sytem in max. But then I got this error:

? error: serial: specified port not available
? error: serial: specified port not available

I checked the [[ serial com5 9600 8 1 0 ]] in the deice manager and that was the same (don't know what that 0 is still)

Anybody know why it ain't showing in max?

edit:
Forgot to mention:
using windows xp sp2
arduino usb atmega 8

WOHOO

ik now know what the problem was: the com5 in max from the example should be COM5!

How did i find out:
the F1 help on serial in max gives an example for the serial function. The most top [[ print ]] outputs all available com ports. That those where in capitals.