no stereo sound!

hey guys pls help I'm desperate....

Don't know why but I was so curious about Linux product Kubuntu and I've install it on one of my partition. Few days after I've realize that I do not like it...actually I couldn't acclimatise on it so its off now.
Then my problem appeared. No stereo sound!
As i recall,after uninstalling kubuntu I had problem to start up windows displaying that it cant find GNOME or something to start....nevertheless I had to reinstall win7
After all that mess and starting almost from beginning there is NO stereo sound!
NOTE:
I use ordinary Realtek High Definition audio device
I tried with GLARY utillities to solve problem but none
And I fear to mess around with registry cleaner

PLEASE DON'T LAUGH AT ME AND HELP ASAP

right click on your speaker icon and select playback devices and make sure that you have speakers selected as your default playback device.. hope this helps...

thank you for your reply but ok I'm not so stupid.... that was the first thing I've done but it's not the issue...
I've scan it with Uniblue power suite and after few times of repairing things it wont repair this(attach below). what can I do?

No one was calling you stupid, you would be surprised how many people dont check their playback device settings... you could try a system restore to a point previous to when your problem started...you could also try a repair install ... good luck..

OMG NOOOO
is there other solution? thank you anyway +1rep

A repair install will not effect any programs that you have already installed ... try it out

really? ok can u please link me to some explanation how to do it...or explain it with your words because I don't know how. sorry for your time loss but I would be grateful (if it mean something to you))

insert your windows 7 dvd and boot your computer ... select repair install from the main menu... Hope this helps..

oh I thought its like something more complicated than that lol
ok I'll be back ASA I'm finish
cross fingers right? lol

fingers and toes too!!