When playing Farmvillw I get a script error for Internet Explorer and everythng freezes. When I tell it to stop running the script Farmville will work for about ten seconds.

Is your Adobe Flash player up to date ?
Have you tried to clear your cache ?

Are you able to play other games apart from Farmville?
Do you get any error message or error code? Here are a few things that you can try -

a) Check the Internet Connection. Internet games need a good internet speed to buffer and load.
b) Try to open the game on a different browser and a different computer. Check if the issue persists.
c) Close other applications and open windows and then try to load Farmville.
Method -

You need to perform the steps from the article mentioned below-

Troubleshoot problems playing online games using Internet Explorer
http://support.microsoft.com/kb/2528246
Additionally, you may refer the steps by Sandeep Ghatuary from the thread mentioned below-

http://answers.microsoft.com/en-us/ie/forum/ie9-windows_7/unable-to-play-farmville-or-petville/78c5930b-e6ae-47da-9a57-1646f4b2b507?tab=MoreHelp

Note: The Reset Internet Explorer Settings feature might reset security settings or privacy settings that you added to the list of Trusted Sites. The Reset Internet Explorer Settings feature might also reset parental control settings. We recommend that you note these sites before you use the Reset Internet Explorer Settings feature.
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Anonymous, we'll need a whole lot more information in order to help you. "Scrip" means "money", so I'm guessing you mean "script", which is a series of commands. The script might be in your browser, in your word processor, or in some other program, or it might be directly in Windows. We can't tell from your description. What is the actual message you're seeing, and when do you see it?

I understand that you are getting the script error. Refer the link for the information to troubleshoot script errors in Internet Explorer:

http://support.microsoft.com/kb/308260

The information contained in the link Applies to

• Windows Internet Explorer 9
• Windows Internet Explorer 8
• Windows Internet Explorer 7
• Microsoft Internet Explorer 6.0

You may also try reset the Browser and check the operation.

If you use Internet Explorer as your Web browser, chances are you have experienced, or will experience, popup script errors. Typically, a dialog box may appear stating "A Runtime Error has occurred. Do you wish to Debug?" or "Internet Explorer Script Error. An error has occurred in the script on line 1. Do you wish to continue running scripts on this page?" These errors can be distracting and interfere with your Web browsing experience. If you would like to stop receiving these error messages, you must modify your IE settings.

Open IE, select "Tools" and ten choose "Internet Options." The Internet Options dialog box will open. Click on the "Advanced" tab, scroll to the "Browsing" section and then select the "Disable Script Debugging" box.

Clear the "Display a notification about every script error" box under the same section if it has been selected. Click "Apply" and then choose "OK" to modify your IE settings. You will receive no more IE script error notifications. Hope this helps.

I would blame Internet Explorer as the culprit here. Try a modern browser: [LINK]

Google Chrome is updated far more often and while Internet Explorer has been improving here and there recently, I would bet that the problem goes away and your internet experience itself improves with a newer browser. Good Luck!

Someone else might be on your profile... also FV is usually a slow game to play on most browsers.

What should you do about Internet Explorer script errors?

In most cases, you can ignore them. Script error messages are displayed by Internet Explorer when there is a problem with the JavaScript or VBScript code on the website you are viewing. Occasionally a script error can be caused by an error in downloading a webpage, but more often it is an error in the webpage itself.

To be sure it isn't an error in downloading, click the Refresh button, or press F5.

Internet Explorer refresh button

If the error persists, and you are not a developer testing a website, you should click No to ignore the error.

To avoid script errors in the future, you can turn off script debugging and notifications in Internet Explorer. Script error debugging and notifications are turned off by default. If they have been turned on, follow these steps to turn them off again.

1. Click the Tools button, and then click Internet Options.
   

2. Click the Advanced tab, select the Disable script debugging (Internet Explorer) and Disable script debugging (Other) check boxes.

3. Clear the Display a notification about every script error check box, and then click OK.

Use alternative browser. Mozilla Firefox runs Facebook better and loads faster than any other web browser like Internet Explorer.

Here download this file to help you with farmville and any zinga games

1. Mozilla Firefox 3.6

reinstall your flash player. or still you dont have a flash player to play games like farmville in facebook.. here is the link my friend, dont you worry.:D
http://www.adobe.com/products/flashplayer/