Vista - CD/DVD writer/reader problem!

Hi,
I have a Acer Aspire 6920 that doesn't read nor burn dvd or cd's anymore because the Slimtype DVD A DS8A1P ATA software is missing from my notebook (code 39)
So I was wondering if anybody could help me fix this problem so my notebook can read cd/dvd's again.

thanks

try this. i found it on driverguide.com

cr.am browsing: CR.AM: URL Cache Error

@ Mrtyn, try these procedures here - You can no longer access the CD drive or the DVD drive, or you receive an error message after you remove a CD recording program or a DVD recording program in Windows XP: "error code 31" - It "might" fix your problem. Yes these procedures work on Vista.

@kword88, What's up with website you're linking to??? I'm always suspicious when a site I attempt to open tries to install software before allowing me to see the site; especially when IE blocks the site!

@ Mrtyn, try these procedures here - You can no longer access the CD drive or the DVD drive, or you receive an error message after you remove a CD recording program or a DVD recording program in Windows XP: "error code 31" - It "might" fix your problem. Yes these procedures work on Vista.

@kword88, What's up with website you're linking to??? I'm always suspicious when a site I attempt to open is blocked by my browser, IE in this case.

@sygnus21
thanks for your reply, but I'm not really a computer genius
So I don't think I want to try the Registry Editor because of the warning.

I think I'm going to call Acer today so see if they can do anything to help me,
because I really can't think of simple solution for my problem.
But really, thanks anyway.

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system.
Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved.
Use Registry Editor at your own risk.