Hello. I know you indicate you only had the laptop a short time.
I have a Dell XPS 17 L702X notebook and several of us Dell owners have encountered this exact DBACSU.DLL problem but only after performing a factory restore. We corrected it with an update from Creative Labs. Try running the menu option for Creative Software Autoupdate and install the offered critical updates. I'm confident it will fix your problem.
I would be very interested to know whether a factory restore might have caused your issue too.
Please see these links for more:
The suggestion to check for malware is always a good idea, but I don't think that is causing your issue this time
Yes, for me too the problem occured after factory reset. However, for me, first factory reset went fine. For some reason, I had to restore again, and the error came that time. And while I was at it, I did factory reset two more times, now it came both the times.
My laptop - Dell new XPS - L502X
Sound - Realtek high Definition Audio.
Downloading the audio driver from dell support website. Lets see how it goes.
Edited by hamluis, 16 June 2011 - 01:52 PM.
Split from different topic.