MIDI playback problem

[Petros Antoniou]

Hi everybody,
I'm very new to Mbox2 and Pro Tools and i want to ask something that may look funny to you all but i really don't know what i'm doing wrong.I create an instrument track, i set ins and outs as shown in the tutorials and record using the Xpand.Everything seems to be recorded OK but when i play the track i recorded its totally out of time.I hear half the notes i recorded and even these are out of time.What could be set wrong here ? I'm very happy with my Mbox2 and all the bundled software and this is the only problem that i faced.I'm using version 7.3 cs3 on a laptop pc (HP 9393) and with an M-AUDIO Keystation midi keyboard.The keyboard is connected via USB on my laptop.Thank you for reading... See you...