Will Lion work with older programs

I have lots of older programs including Adobe CS, Adobe CS3, Eudora 6.2, etc. that work fine on my iMac running 10.6.8 with i3 processor, will they work with Lion if I upgrade? Just checking before I download the update. Thanks for any info.

CS3 runs but reportedly has issues. Adobe CS, the original version, will not work, nor will any application that is PowerPC only, since Lion no longer supports PowerPC applications. If you don't know what apps are PowerPC only, Get Info on the app, and in the Kind section, it will say. Apps that say either "Intel" or "Universal" at least have the potential to run, though there are other factors involved in Lion compatibility. The RoaringApps site is a useful resource:
http://roaringapps.com/apps:table
though the most definitive method of confirming compatibility is to check with the developer.
Regards.

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As long as it meets the following requirements:
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Will Lion work with Lightroom 3 or 4? Partition to keep 10.6.8 OS?

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http://roaringapps.com/apps:table

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Also for the first time my Mac is connected, my old G4 wasn't connected, I used my PC for internet.
Should I consider a virus software, ie Nod 32 or similar. I only use the Mac for FCP and iDVD, other than that I use 2 laptop PC's for everything else, incl email.

Here's my advice: If you plan to keep running FCP 7, FCP 6 or any of the legacy Final Cut Studio apps, do not, REPEAT: DO NOT upgrade your computer in any way whatsoever beyond what works now. Since Apple made the sudden and unannounced decision to pull support for FCP 7 and earlier, you cannot trust them to make sure that newer any newer OS or QuickTime version will be compatible with software that they've chosen to make obsolete.
If you want to go ahead and upgrade anyway, do so at your own risk. Apple won't be there to back you up when it fails.
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I uninstalled firefox due to incompatabilty issues with my work program. I need to reinstall 5.0 or earlier as our program will not work with 6.0. How do I find an earlier version 4 or 5. Thank you.

Slow running program, uninstalled Firefox, I believe 3.1. My work program will only work with 4 or 5 for now. Where can I find an earlier version to download?

In some cases, the incompatibility is due to the new HTML5 parser in Firefox 4. You could disable that and test whether the bank site works again.
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Close Firefox 4.
You could install Firefox 3.6 over it (many have reported success) or you could uninstall Firefox first. If you uninstall, do not remove your personal data and settings, just the program.
Unless you have installed an incompatible add-on, Firefox 3.6 should pick up where you left off. If there are serious issues, please post back with details.
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Scott Q1 wrote:
Thanks everyone.
Bummer.
Not a bummer. What is wrong with the OS you are now using?
If it Ain't broken don't try to fix it.
Be Happy you don't have to deal with all the changes and inconsistencies that Lion has created between it and older Mac OSs

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Hi,
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I have just purchased a new iMac OS Xlion version 10.7.3 and I'd like to install Windows. I have a disc for XP but the Boot Camp Assistant manual only refers to Windows 7. Please does anyone know if it will it work with XP.?

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You may need many other updates to retain compatibility with Lion. I suggest you reinstall Snow Leopard. Unfortunately, you will need to erase the drive first. Be sure to backup your data if you haven't done so already.
Clean Install of Snow Leopard
Be sure to make a backup first because the following procedure will erase
the drive and everything on it.
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         with your computer. Insert the disc into the optical drive and restart the computer.
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         by opening Software Update and installing all recommended updates to bring your
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Download and install Mac OS X 10.6.8 Update Combo v1.1.

Will Lion work with older programs

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