I have an Acer T690 Desktop and I am getting:

You must download the correct drivers for audio, video, hard drive and mother noard.
Go to Acer.com and there is a menu system that will lead you to them.
Hope this helps

all drivers are available from acer tech support on acer website simply download the correct 1s for your model to your documents folder then go to device manager and ask computer to update the drivers and add the documents folder to location to check it should find and fix them automaticly hope this helps

A friend of mine had that problem. She contacted Acer and said she did not have a chance to make a backup disk and she needs to re-install the operating system. Within a few days Acer sent her the backup disks.
Just call Acer and ask for it, like she did. If that should not work for you, come back and someone will walk you through to put a copy of your drive on a cd. Hope things work out for you!

you need to install drivers ...

Click here to open driver download page. Select the video driver, download it and install it when download is complete.

this computer has an integrated sound card, which means it is integrated in the Motherboard.
If you have a driver cd that came with the computer, reinstall the audio dive drivers.
If you don;t have the CD,

Go here and download the driver.
http://gd.panam.acer.com/home/

go to this site and download the audio driver and just install it

http://support.acer-euro.com/drivers/desktop/aspire_t690.html

You can download the correct driver by right click on "My Computer" and then choose "Device Manager" scroll down and see if your computer recognizes the audio. If it does then make sure your cables are connected. If not you can right click and choose "Install Drivers" and then choose "Install from the Internet" Or you can go to Acer's website and choose the correct drivers for your exact model. Please mark this is a solution if I helped. Thanks!

Go into DEVICE MANAGER and check both the hard drive and DVD. Sounds like you have a hardware conflict, that is both are competing for the same territory (IRQ). You should be able to change this setting manually in there.

Hi,

If you can open CPU casing the look under the motherboard, see if you can find the Chipset of your Sound Device, it is usually start with ICON and Model Number, like ADI1987, CMI3798, something like that. And if you found it, then post the chipset model and i will be happy and glad to help you find the proper driver for it.

-mrsolution.