Well, I'm at it again, trying to get this spreadsheet to do what I need it to do. So far, so good, thanks to all the help from everyone here.

Now, I need to protect ONLY certain parts of the sheet. All the places where I need to input figures should be available, but everything else needs to be protected against change, because sometimes when I'm in a hurry, I don't put the cursor in exactly the right spot, and if I don't notice it right away, I have a problem.

Here is what I want:

Code:
The date and time columns need to be protected against change, but the level columns open for entry.

Date              | Time   |Level| Time    |Level| Time    |Level| Time    |Level| 
Tue, Oct 01, 2013 | 7:37AM | 110 | 12:25PM | 100 |  5:46PM |  97 | 10:07PM | 113 | 
Wed, Oct 02, 2013 | 6:32AM | 108 |  1:23PM |  96 |  5:26PM |  96 | 12:04AM |  96 | 
Thu, Oct 03, 2013 | 8:12AM | 142 |  2:33PM | 101 | 10:28PM |  73 |  1:12AM | 107 | 
Fri, Oct 04, 2013 | 7:09AM |  87 | 12:33PM | 121 |  3:54PM |  97 | 11:31PM | 122 |
I have wrestled with the Review -> Protect Worksheet for a couple of days, and cannot get it right. And, oh, yeah, I'm using Microsoft Excel 2007

Thanks for your help.