Hey folks,

I have a Dell Studio 1558 and I have some concern about my power brick.  The brick itself makes a light sizzling, buzzing or light crunchy noise which isn't continuous, but is causing me concern.  The computer itself, also makes a similar noise when doing stuff like scrolling down a page in an internet browser.  Every time I press the down arrow and it loads new images, it makes a brief sizzling noise.

When my computer was brand new I brought this up with tech-support and they gave me a new power brick but the noise never went away.  I took a day off work to stay at home and waited for a tech to come to my house so I haven't complained about it since then.  It seems to be an intermittent issue, some days its worse than others, and I've had this computer for about 2-3 years now.

Any thoughts would be appreciated.  Have there been any recalls on the power supplies for my computer?  Is this something I should be concerned with?  Aside from making a noise, I haven't noticed any appreciable decline in my computers performance, I'm just worried about it shocking me or frying some of the components inside the computer!