Applications quit unexpectedly after installation of Snow Leopard

Question

Hello,
I just recently purchased snow leopard and put it on my macbook which is currently operating tiger. It was purchased in 2006 and has a 2.16 GHz Intel Core 2 Duo processor. The installation was successful, but once the computer restarted a message came up saying "the application quit unexpectedly." After hitting reopen 58904 times and it still not working, I decided to try and open safari. Once again I got the same message saying " the application quit unexpectedly." This went on with multiple other applications. Finally i decided to just downgrade back to tiger. I would really love to get my moneys worth on this Snow Leopard purchase. Can someone please help me understand what might have happened?

Answer 1

I am not sure what you mean by haxie programs from unsanity. I also did not try to make a different user account. What do you recommend?
There were some popular programs from a company named Unsanity that were written outside of Apple's programming guidelines. They took advantage of undocumented features in earlier versions of OSX (that's why they are called 'haxies'). Unfortunately, they've been a real problem for upgraders. They are not compatible with 10.6 (they weren't compatible with 10.5 when it came out, but some have been updated), and can cause many problems including some users not being able to boot at all after installing 10.6 - Make sure you are not using any of their products on your Tiger installation: http://unsanity.com/products/
Meanwhile, it's a good idea to do a little housekeeping before you upgrade to a different OS, especially when you jump a couple versions. I would use Disk Utility to Repair Permissions on the drive and use a program like SuperDuper to make a bootable clone of your existing OS to an external drive. I'd also be tempted to run a cache cleaning and general maintenance program like Onyx for Tiger: http://pagesperso-orange.fr/joel.barriere/dl/104/OnyX.dmg , or CocktailTE: http://www.versiontracker.com/dyn/moreinfo/macosx/10385789 - You will need newer versions of these programs if you want to run them after upgrading to Snow Leopard.
You really should have 2GB or more Ram for Snow Leopard so that it will be able to run at it's best, and your hard drive needs more space during the installation that when it's completed. How much space is left on your drive?
You should probably take a look at these tips by those who have gone before you so that you'll understand what's happening and what to anticipate: http://discussions.apple.com/thread.jspa?threadID=2202296
After installing SL, I'd download and use the 10.6.2 Combo Update as it seems to do a better job than Software Update for this purpose: http://support.apple.com/kb/DL959 - You can download it any time and keep it on hand on the drive you are updating if you want.
With a few precautions like a bootable clone, and the ram, and the drive space, you should be able to run SL pretty well.
After installing the 10.6.2 update, I'd use Disk Utility to Repair your Permissions again, and then run Software Update to get all the updates for your Apple programs.
Be prepared for the new installation to act a little sluggish for an hour or so after you boot to 10.6 the first time. Spotlight will be working pretty hard to index your drive's files. This is normal and will settle down after a couple of hours and a couple of restarts, with new system cache files in place.
Hope this helps.