I'm as dumb as a rock when it comes to computers.

I have an old desk top that has been acting up lately.

It's not working as good as it has been for the past 10 yrs.

Things like scrolling, highlighting etc. have become very erratic.

One main symptom is when there is sound it comes out buzzing.

Also, if I get a notice on the lower right, it presents appears stretched out.

Sort of like a bar code if that makes any sense to anyone following.

I presently have windows 7 but I hope that's not my issue.

Possibly someone can walk me through some diagnostics??

Any input is gratefully accepted if anyone has the time!!

Thanks
Randy