Artifacts when exporting audio

Hi, I got an really embarassing issue when I tried to export mixdown of my last project…

I got audio artifacts in the file… I opened it in Wavelab 7 and I easily saw the “glitch” un thhe waveform…

The problem is that there’s artifacts even there’s no audio event… like if Cubase created it by itself…

I tried to disactivate all plugins, to solo different groupe (ex. drums, basses, vox, …), to export at a different resolution or sample rate…I tried to export in real time or no, the problem stay there…

Can you help me ?

I’m using Cubase 6.07 on an Intel Quad 3.2gHz + 12Go DDR3 audio-built pc from Sonica Audiolabs… my project is in 32 bits float at 48kHz sample rate…

Thanks !

Anyone please ?

It’s a very important project

What type of mixdown?

I’ve been getting drop-outs on exported mix-downs recently (no idea why this has just started happening), but if I export using the ‘Real-time’ option, the export is perfect.

Hope that helps!