Anyone else’s iPhone buggy since updating OS?

Ever since “upgrading” my iPhone 3GS to the new OS4, my phone has had a few problems. The response time of the touchscreen has slowed, and the sensitivity skips. Often, I am able to type out only three of the four digits required to unlock the phone. Once the phone is unlocked, it sometimes appears to be “hung” in a process, stuttering under my touch. Prior to the fourth iteration of the operating system, the touchscreen was more responsive; the images underneath the layers of glass moved more fluidly in sync with my fingers.

I have been getting used to typing my passcode more slowly and waiting for the phone’s processor to catch up to my inputs. But now I’ve noticed another problem, this one more serious. Once a week, my phone stops picking up the 3G network. If I’m outside of a WiFi zone, I’m stuck with the slower Edge network, where the gray “I’m doing something” progress wheel spins at half the speed at which I like to see it spin. If I reboot the phone, the 3G network comes back. But really. Should I have to reboot my phone just to check email?

Anyone else seeing similar problems since upgrading the OS?

 

more PowerBook display problems

Last August (meaning 2008),  my PowerBook’s screen started to flicker. It usually did this when the laptop was booting up or when waking up from sleep mode. I associated the flicker with the sudden change in temperature: asleep, the all aluminum body is quite cool to the touch, and it heats up rather quickly once it is on.

So last summer, I installed G4FanControl, a program that manually overrides the temperature settings at which the laptop’s three cooling fans come on. I have been able to set that temperature lower, keeping my laptop cooler for more than a year. And it has been doing fine. Until today.

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Any further suggestions?