I want a graphics driver for windows 7 for my desktop model hp d330

disktop, not told if desktop has gaphic card in the PCI-e slot.
if yes, only those driver work, at nvidia or ati./amd
if no card
that is the igpu
and all drivers for it are at hp.com
they designed and made it and only their drivers work right
matched to w7. only and DC579av)
hp.com
go to
DC579AV get the drivers.

hp ended all support ( 18 year old pc)
old old PC. came with XP new. you put w7 on and and not ask if it works there first?
chips set 865 relic, P4 ,.2003 chip set too old.

What operating system are you running? Here is a link to the driver download page...

AIO 940 Drivers Product Support Dell US

You should run windows upgrade advisor as I don't think your specs meet the requirements

http://h20000.www2.hp.com/bizsupport/TechSupport/Home.jsp?lang=en&cc=us&prodTypeId=12454&prodSeriesId=342066

buy the sound driver or you download it from www.serial.ws

buy the sound driver or you download it from www.serial.ws

hp d330 ut(dz010a) network driver

Hope this links help u out.
Intel Chipset,install and reboot:

http://downloadcenter.intel.com/Detail_Desc.aspx?agr=N&ProductID=2115&DwnldID=14528&strOSs=44&OSFullName=Windows*%20X
P%20Professional&lang=eng

Intel Graphics:

http://downloadcenter.intel.com/Detail_Desc.aspx?agr=N&ProductID=2115&DwnldID=14385&strOSs=44&OSFullName=Windows*%20X
P%20Professional&lang=eng

Audio,Realtek:

http://tinyurl.com/pfw3c

Realtek ethernet driver:

http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=14&PFid=7&Level=5&Conn=4&DownTypeID=3&GetDown=false

maybe you haven't installed yet your video/graphics driver, install it and and reboot yoour computer. It might solve your problem.

Did you check the audio settings in control panel. you need to select the appropriate hardware from the drop down list. See if it works.