Just downloaded Mountain Lion. Can no longer access Photoshop, can no longer use my printer and drivers will not download. What a catastrophe. My printer is fabulous and I don't want to have to buy a new one and I really don't want to buy Photoshop again. Can I revert back to Snow Leopard? Anybody, please?
To revert back to SL, I suggest you don't run iPhoto as it will "upgrade" your iPhoto Library and you won't be able to use it in SL.
What printer do you have?
How did you go from SL to ML? You didn't install Lion first? You tricked the installer into thinking you had Lion already? The reason I ask is I'm wondering why you want to go all the way back to SL when Lion would probably do.
This is what I would do to revert to SL:
1) back up your Documents folder (and any other folders you care about such as Pictures). If you care about your Chrome or firefox profiles, back those up as well. If you have a lot of stuff in your keychain that you don't want to type over again, back that up as well.
2) make sure email accounts are imap and everything is on a server so I can simply dump locally stored email and not care about it
3) Back up any installer dmg files you have lying around.
<< DO NOT GO PAST THIS POINT IF YOU DO NOT HAVE YOUR DATA BACKED UP ... AND BY BACKED UP I DO NOT MEAN MERELY TIME MACHINE >>
4) Now it gets interesting... Insert your SL DVD and run disk utility from the SL DVD to partition Macintosh HD over again. This is where you lose ALL YOUR DATA. Time Machine backup will not restore to an older OS so you need a different method of backing up all your stuff.
5) Once partitioned, you should be able to run the SL install.
6) Once installed, restore your Documents folder and apps.
