Lenovo Y-500 series laptop
Speaker problem

I purchased a laptop lenovo Y-500 series in march last year.

1-2 months later, I faced a problem related to the ms-dos version of turbo-c.

It started some of the time but didnt many of the times.

I consulted the owner from where I took laptop.

He solved the problem, but this time the size of the window after opening of the software got reduced.

Then, after few weeks I faced problem related to speakers.

I sent the laptop to lenovo service centre n dey solved the problem but installed windows xp professional edition in addition to home edition..

But now I m not able to install many of the softwares in it that have been installed successfully on others'

laptop...

Also I m facing problems regarding the starting up of oracle-9i services i.e. TNS listener and agent which

I was able to start easily previously..

what should I do now???