Isight acting up

I have had my isight for almost 2 years now and up until recently it has been working perfectly. However, now my powerbook G4 simply does not detect it.
I have checked the connections and restarted both the ichat programme, yahoo messenger and the computer itself several times to no avail. Having said this, 1 in 20 of the times I unplug and replug the firewire, the isight works but is very sensitive.
Please advise!

Hello Dalia
Welcome to Apple Discussions.
If you rule out bad cables or connections, and if you regularly perform Mac OS X maintenance, I wonder if you have a Possible hardware or software conflicts with iSight?
Next, if System Profiler does not recognize your iSight, try Apple's procedure for resetting Firewire. See the What to do if your computer won't recognize a FireWire device link in the iSight Support Page. Of course, on your PowerBook, after shutting down and unplugging everything, you will need to remove the battery for 15 minutes to really power down the PowerBook. Then, replace the battery, plug your PowerBook in again, and restart. Does System Profiler now recognize your iSight?
You can also try plugging in your iSight and running the Apple Hardware Test CD that came with your Mac to see whether that gives you any problem report. Although the Test CD has never proven very helpful for me, it is
b possible
that it might be able to identify some specific issue.
If System Profiler recognizes your iSight, try the suggestions in the How To Ensure Your iSight Is Functional FAQ. If none of the above suggestions help you resolve your problem, or if System Profiler will not recognize your iSight, take your iSight to your Apple Service Technician for a professional check. Unless you KNOW that your problem is ONLY with your iSight, I would suggest you take your PowerBook, too. What you really want is for them to work TOGETHER, so your Service Tech should want to check them BOTH.
EZ Jim

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