IMac 10.6.2 freeze when using iSight

Question

Hello
i have Problems - after i upgrade to 10.6.0 from 10.5... everything was ok .
Then i installed 10.6.1 - still not big problems sometimes hang up - only power off helped .
Since i use 10.6.2 - System freeze when using iSight , ini Chat or Skype after 20 sec.
I tried to go back to 10.6.1 - freeze after 20min .
With 10.6.0 so far no freeze .
I need help .

Answer 1

TnT Sweden wrote:
Hello , once again
i tried these steps with reset , .... did not work .
Also in another account .
So i think i will try to make a clean Installation .
As i am "new" into Mac - what will be the best way .
I had Leopard from the beginning - now bought Snow Leopard .I have Time Capsule for Backup.
My questions - with what System CD i should start to make the clean install ?
10.5 or 10.6 ?
And How ?
What Data will be lost - or is all backup with Time Machine like Photos ,......
Thanks in advance -
If you follow your plan, you will learn a lot and not be nearly so "new" to Mac. Here are my responses to your latest questions/statements:
So i think i will try to make a clean Installation .
In our jargon, a "clean" install means that you will erase your disk and individually reinstall your system and applications, and then restore your data files. This method is very thorough and will give you a pristine system, but it requires considerably more of your time and effort than other methods that may correct your problems.
Easier alternatives are available for your consideration. Before you undertake a system reinstall, read the rest of this post and then study this document and the links in the document that are applicable to your problem and plans:
  http://support.apple.com/kb/TS1388
If you decide to reinstall your system, carefully consider your installation options:
  http://support.apple.com/kb/HT1545 (also applies to OS 10.6)
As i am "new" into Mac - what will be the best way .
"Best" can mean different things to different people. For example:
• The method explained in the User Guide (manual) that came with your Mac is the easiest way.
• The "Erase and Install" option from http://support.apple.com/kb/HT1545 is quicker to reinstall, but requires more work for apps and data after the OS is installed.
• Archive and Install with the "Preserve user and network settings" option eliminates the need for reinstalling apps and reconfiguring network and other user settings by "preserving" these things during the OS reinstall. Unfortunately, it sometimes also preserves the problem that is causing your difficulty.
• Secure erase before installing OS assures that NOTHING unwanted remains on your disk to cause problems after the reinstall. One pass of writing Zeros is sufficient for your purpose. Note that secure erase will take hours, depending on the size of your disk. The help article below applies to your 10.5&6 as well as the 10.4 it states,:
  http://docs.info.apple.com/article.html?path=DiskUtility/10.5/en/duh1011.html
Perhaps easiest of all (as least for Time Machine users) is to use your Mac's Leopard Install DVD and your Time Machine backup to "Restore" your system to a configuration dated BEFORE you did the update that has caused your problems. This method will get you working quickly, but it will not help you use Snow Leopard. If you have not already figured out how to do this "Restore," see:
  http://support.apple.com/kb/HT1553
The section entitled " Using Disk Utility" will help you use your Time Machine backup to take your entire system back to when Leopard was working. After it works again, either stay with Leopard, or uninstall or update whatever software is causing your Snow Leopard conflict before again updating to Snow Leopard.
My questions - with what System CD i should start to make the clean install ? 10.5 or 10.6 ?
Use Leopard Install CD if you want to backup to Leopard.
Only use Snow Leopard if you want to try a fresh install of SL to see if you can get it working.
And How ?
Depending on your needs and whether you bought your Mac and SL update locally, and especially if your time is valuable to you, the best way may be to contact your retailer for an appointment so he can either help you or fix your problem for you. If you can use this as a training exercise, you will find it easier to do than to read and write about, and you can ask questions during the process. If you retailer does not consider proper installation of the SL software you bought from him to be part of his service, and if he offers "One to One", you may find it well worth your time and its cost:
  http://www.apple.com/retail/onetoone/
If you have plenty of time, or if you merely like doing things for yourself, follow the instructions for the Disk you are using (or the instructions in the links I cite above if you want to try one of those methods.) Remember, you can try an easy/quick way first in case it works without all the manual effort on your part. If that fails to correct your problem, you are only out your time. You can try the next easiest way, and keep trying increasingly complex methods until you find the one that works for you.
What Data will be lost - or is all backup with Time Machine like Photos ,......
This answer varies depending on which method you use to restore your system or reinstall your OS:
• NOTHING IS LOST when you Archive & Install
  (if you "preserve user and network settings" before installing)
• EVERYTHING IS LOST when you secure erase.
• Other methods may keep data but lose application or user configuration settings.
(1) I use SL on two Macs and it work GREAT on both. I WANT to use SL because I like it MUCH better than Leopard.&ensp:You did not ask this, but here is how I would proceed to get SL working:
♦ Unless you already have it, I would make another, separate, backup of all important data in addition to the one you already have in Time Machine. One backup is not enough for me. In addition to your music, photos, and other data files, consider items like those listed here:
  http://support.apple.com/kb/HT2980
♦ THEN, I would securely erase the startup disk and follow the instructions that came with the SL DVD to install SL. 
♦ Immediately after the restart that completes the install, I would use Mac's Disk Utility to repair permissions.
♦ Then configure your internet connection, and download and install the Mac OS X v10.6.2 Update (Combo):
  http://support.apple.com/kb/DL959
♦ Immediately after the restart that completes the Combo Update, repair permissions again.
♦ Once you have reinstalled SL, use  > Software Update... to update any other Apple software as needed. I repair permissions before and after any installer than asks me to enter my Administrator Password.
♦ Now you can test your iMac using http://support.apple.com/kb/HT2090 to verify that the problem is resolved. If your problem persists at this point, see your Apple Authorized Service Provider for professional help.
♦ You can restore your data files either now or after reinstalling third-party items.
♦ Now, you can reinstall necessary third-party software. Install only one item at a time and test thoroughly before adding another so you can tell if one of them is causing a problem.
(2) If you would rather retreat to Leopard and not bother trying to fix SL on your Mac, the easiest fix will be to restore your Leopard system from Time Machine. You can then restore any data newer than your last working Leopard system from your backups.
EZ Jim
Mac Pro Quad Core (Early 2009) 2.93Ghz w/Mac OS X (10.6.2)  MacBook Pro (13 inch, Mid 2009) 2.26GHz (10.6.2)
LED Cinema Display  G4 PowerBook 1.67GHz (10.4.11)  iBookSE 366MHz (10.3.9)  External iSight