Window 7 upgrade now intermittent audio?????

Gday all:)
I have an ideapad Y530 that is currently experiencing audio issues.
I recently upgraded from Vista to 7 Ultimate and ever since the audio only works about 1 and 10 times. I have found many posts on the net with similar issues but nothing exatly like mine. All speakers have been enabled, audio driver updated and every type of trouble shooting tried.
Basically i start the computer, get the Lenovo boot-up jingle, then no sound. But every ten starts, or so, the sound works perfectly?
The only other strange thing i notice is that if i plug in speakers and put the volume on FULL i can hear sound ever so faintly.
Feels like some sort of conflict but i cannot find one. Its as if Windows 7 loads the driver sometimes and not others, but if so why is the sound faint when i plug in speakers? Should i open the laptop to search for physical damage between the motherboard and speaker connections?
Very confused???
Cheer for an ideas.
Geoff

I wouldn`t go ripping apart your pc. You could destroy it. I doubt if there is anything wrong with it physically.

Did you do an upgrade from Vista or did you install 7 from the dvd. Uninstall the drivers again and reboot the pc. Use windows update to install the drivers again or go to the Lenova website and download them. You have to keep trying.

I upgraded from Vista to 7.
A clean install is next on the list after i try a few forums(in the hope what a was missing was obvious)
So far i have performed the following;
-Updated Realtek driver
-Rolled driver back to the Vista driver (reninstalled current driver)
-Updated all available drivers form lenovo.com
-Updated all available drivers for intel.com
-System restore to day of installation in case i changed a setting or an update caused a conflict.

I was unable to locate a software update for the motherboard, i thought perhaps the sound card was integrated into the motherboard and therefore an update may correct the issue.
My gut tells me to re-install the Windows 7 upgrade, then failing that perform a clean install. My gut also says my Windows 7 is not really interested in what such an old laptop would like it to perform.

Currently I'm in that stage where i would like to upgrade my laptop yet the one i have still works remarkably well, so i like to save this one.

Well then, I would do a clean install with your upgrade disc. There are tutorials here on how to do it.

Cheers, sounds like to go...:)

You could always go back to Vista.

haha...
I'd rather have no sound....