IE (Internet Explorer) Issue for Salesforce.com?

Hi Everyone:
I had an issue where I wrote a simple trigger to update Contact Record off an Opportunity. Everything worked out with a test rate of 90%, then deployed into the production from sandbox.
But then realized that it worked for some people and some people it did not.
So a couple of test I did was:

1. Check my code
2. Check the Profile
3. Login as the user and see if I re-create the same error message.

Well I logged in as the user, the trigger worked in every aspect... So I knew there was maybe a IE issue since the user kept using IE and did not want to use Mozilla.
I contacted Salesforce Support and there great representative told me what I needed to do to get it working for that person...See Below:

"Please have your user implement the following solution on his computer and test the trigger again.

Here is a guide to browser settings on Microsoft Internet Explorer 6 and 7 that can help users who are having trouble.

1. From the browser menu, click Help, then choose About Internet Explorer. Ensure that the cipher strength is 128 bit or higher. If it is not, go to www.microsoft.com/windows/ie and upgrade to a 128 bit version.

2. Next, click the Tools menu, then select Internet Options.

For IE 6:
3. On the General tab, locate the Temporary Internet Files section and click the Settings button. Select the "Every visit to the page" radio button and ensure there is enough disk space for the cache. The ideal cache size is between 20 and 50 megabytes (MB). (Make sure your computer has enough disk space on its hard drive.) When you are finished, click the OK button.

4. In the same Temporary Internet Files section of the General tab, click the Delete Cookies button and Delete Files button.

For IE 7:
3. On the General tab, locate the Browsing history section and click the Settings button. Select the "Every time I visit the webpage" radio button and ensure there is enough disk space for the cache. The ideal cache size is between 20 and 50 megabytes (MB). (Make sure your computer has enough disk space on its hard drive.) When you are finished, click the OK button.

4. In the same Browsing history section of the General tab, click the Delete button. In the Delete Browsing History window that appears, locate the Temporary Internet Files section and click the Delete Files button. Then locate the Cookies section and click the Delete cookies button. When you are finished, click the Close button

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5. Click the Privacy tab. In the Web Sites area or using the Sites button click the Edit button. In the Address of Web site text box, enter "https://*.salesforce.com" (without the quotation marks) and click the Allow button. When you are finished, click the OK button.

6. Click the Advanced tab. Scroll to the bottom of the Settings box. The "Do not save encrypted pages to disk" check box should NOT be selected.

7. Also on the Advanced tab, the "Empty Temporary Internet Files Folder when browser is closed" check box should be selected, as well as the "Use SSL 2.0" and "Use SSL 3.0" check boxes.

8. Click the Security tab. Click the "Internet" icon (represented by a globe graphic). Click the Custom Level button. Scroll almost to the bottom of the Settings box to "Active Scripting". Ensure that the Enabled option is selected. Now scroll to the option that says "Display Mixed Content" and make sure this is set to Enabled. When you are finished, click the OK button.

9. Also on the Security tab, click the "Trusted Sites" icon (represented by a check mark graphic). Click the Sites button. In the "Add this Web site to the zone" text box, enter "https://*.salesforce.com" (without the quotation marks) and click the Add button. When you are finished, click the OK button.

10. With the "Trusted Sites" icon still selected, click the Custom Level button. Scroll to the option that says "Display Mixed Content" and make sure this is set to Enabled.

11. Click the "OK" button.

12. Close all open browser windows, re-launch Internet Explorer, and login to salesforce.com.

NOTE: If problems persist and you know you are connecting to the Internet using a Proxy server, you can also make the following change to your settings.

1. Click the Tools menu, and select Internet Options.

2. Click the Advanced tab, and scroll approximately half-way down the Settings box.

3. Select the "Use http1.1 through proxy connections" check box." From Salesforce.com Premier Support.

Thanks I hope this helps out anyone with this issue.
Thanks
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