HI,
YouTube videos Wwill not work
You need to uninstall your current copy of the Flash Player plugin then reinstall new, then repair disk permissions.
Uninstall Flash
Install the most recent version of Flash here.
Now repair permissions.
Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the Menu Bar, Quit Disk Utility and restart your Mac. If you see a long list of "messages" in the permissions window, it's ok. That can be ignored. As long as you see, "Permissions Repair Complete" when it's finished... you're done. Quit Disk Utility and restart your Mac.
does this sound like an ISP problem or safari problem?
Safari.
As for Google. From the Safari Menu Bar click Safari/Preferences then select the Security tab. Click: Show Cookies Delete all Google related cookies.
Relaunch Safari and try searching Google. If it's still a problem, from the Safari Menu Bar click Safari/Reset Safari. Select the top 5 buttons, click Reset.
Go here for trouble shooting 3rd party plugins or input managers which might be causing the problem.
Safari: Add-ons may cause Safari to unexpectedly quit or have performance issues
If that didn't help, troubleshoot the Safari .plist file. Go to the Safari Menu Bar, click Safari/Preferences. Make note of all the preferences under each tab. Quit Safari. Now go to ~/Library/Preferences and move this file
com.apple.safari.plist to the Desktop.
Relaunch Safari and see if that makes a difference. If not, move the .plist file back to the Preferences folder. If Safari functions as it should, move that .plist file to the Trash.
Duplicate or corrupted fonts can cause performance issues in Safari. Go here for help with that.
http://reviews.cnet.com/8301-13727_7-10389716-263.html?tag=mncol;title
If Safari still gives you problems, login to another user account and try Safari there. If it functions ok there, then problem is just in your user account, not system wide.
Carolyn 🙂