Upgrade for a 2005 apple mac desktop tiger 10.4

Version 10.5: "Leopard" is the last to support the G5. Check wikipedia for more details.

Leopard requirements/10.5.x...
* Mac computer with an Intel, PowerPC G5, or PowerPC G4 (867MHz or faster) processor
minimum system requirements
* 512MB of memory (I say 1.5GB for PPC at least, 2-3GB minimum for IntelMacs)
* DVD drive for installation
* 9GB of available disk space (I say 30GB at least)
Classic/OS9 Apps no longer supported.

$45.00 on Ebay.com - You can't do Snow Leopard.

you need system disk. cannot upgrade across os platforms without disc.

If you have 10.4, you probably have a PowerPC processor and can only upgrade to 10.5

Hi Bobby
You will need to get an OS X installation DVD. Try eBay.Don't go for anything lower than 10.4 (Tiger)10.5 (Leopard) and 10.6 (Snow Leopard) should run fine on this machine.Don't bother with 10.7 or 10.8

I would try and find the OS X Tiger installation disks off of eBay, and install Tiger so that you can at least install Firefox, even if it's an older version. Your computer won't be able to run much, because of the limited RAM, and the fact that the processor is extremely slow.

OSX 10.4 Tiger is not an upgrade, it is an update and you will need to buy the operating system. You should be able to pick it up on ebay or what I would do is seek advice on buying it from your local apple store.

1. Start from your Mac OS X Install disc: Insert the installation disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
   Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.
3. Click the First Aid tab.
4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
5. Select your Mac OS X volume.
6. Click Repair. Disk Utility checks and repairs the disk.

You most likely do need to upgrade Quark. There is a known problem with 6.5 and Tiger, since 10.4 was a major departure from Jaguar, which Quark 6.5 was designed for.

Before you do that though, you might want to explore font cache issues that can also cause this. Here's a free tool and writeup on the subject: http://www.jamapi.com/pr/fn/

That Mac will run 10.4 Tiger, but I would recommend 10.3 Panther. You can download all updates through sofware update after the install is complete. You should be able to find installer disks on eBay for cheap.