Volume drops during play, recording and playback

Hi all :slight_smile:

I’ve never had this problem before. Whilst Im playing my axiom keyboard, and also on play back the volume drops so I can hardly hear my recording. This is on a midi channel, using HSO. The other track nin the project is an audio track and its volume is ok.

I’ve looked into device manager and noticed that under “Other Devices” the Audio Device on High Definition Audio Bus has a yellow exclamation mark on it. No driver is installed. Could it be related to that?

My sound card is M Audio 1814.

Here’s the rest of my spec…

Cubase 5.5.3 Build 651
Win xp 3
Quadcore 2.44Ghz

Edit I just tried another instrument and it’s doing the same. I loaded Garritan and noticed that in the synths mixer the fader drops suddenly towards the bottom so the sound becomes very faint.
2gig ddr 3

Many thanks in advance for your help!