My sister bought a MacBook Pro in January. She switched from a Dell laptop. Everything was great until a few weeks ago. When she would be on battery power, she would have a hard time getting websites to load with Safari. I suggested she use Firefox and see if it made a difference. It didn't.
She can try to open a webpage and it will try to load for a long time (3-5 minutes). If she plugs in the power adapter, the page loads immediately. She still has her Dell laptop and the same websites load with no problem when using the Dell on battery.
I told her to call Apple since she has Applecare. Apple sent her a new battery even though they told her they didn't think it was that. It didn't make any difference. They told her it was her internet connection, but it works fine if the MacBook Pro is hooked up to the power adapter and her Dell laptop loads internet pages without any problem while on battery power. Then they tried to tell her just to use the power adapter all the time. She told them if she wanted to be tied down to a power adapter she would have bought a desktop. (Not a very good comment by Apple in my opinion.)
She doesn't live close to an Apple Store to take it in.
This is just the weirdest thing I have ever heard of. All of her other applications (Office, Photoshop, iTunes, etc.) run just fine on battery power. It is just the internet. At first I thought it might just be secure sites, like banking, but she couldn't get MacNN or Versiontracker to load while on battery power.
Does anyone have any ideas?
Thank you for the help.
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