Replacing Lion with Snow Leopard

Question

Four months ago I downloaded the OS X Lion through the App Store.
I have nothing but problems with Safari ever since.
I have to reconnect to my wi-fi network every time I start the computer.
For some reason it won't remember my preferences.
Here is my quetstion...
If I purchase Snow Leopard software, can I reinstall it in my Mac and get rid of Lion?
I appreciate the advice.
Tim

Answer 1

If it came with Snow Leopard then you can reinstall Snow Leopard, per my instructions, using the original installer DVD that came with the computer. No need to purchase Snow Leopard if you already have it.
If you were willing to take the time and effort, then I would suggest reinstalling Lion from scratch. But that would require backing up your data beforehand, re-installing Snow Leopard then re-downloading Lion, erasing the drive, installing Lion, and finally, restoring your data.
Or, you can simply try reinstalling Lion which will not erase your files:
Reinstalling Lion
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alterhatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion and click on the Continue button.
Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.
Sometimes this fixes a lot of problems that may have been created by upgrading over a not so pristine Snow Leopard system.
I have two iMacs from 2010 working quite well with Lion along with several other Macs running Lion. But this is your decision to make. All I can do is to suggest alternatives or provide you with how to accomplish your goal.