(This was mentioned in the lounge, but I want to bring it up here just in case something can be done on the ExpressionEngine side.)
When updating templates and, less often, posting new entries, garbage characters sometimes appear, such as &∓, &m, &t. Most often they appear at the very top of the template/post as the first characters. Also, sometimes close brackets will convert to single or double semi-colons anywhere in the text—which has a harsh effect on some code, unlike the other spurious text which causes only cosmetic problems. These unexpected text changes do not occur consistently, but I have seen them happen a half-dozen or more times in a row.
The fix—such as it is—is to simply change the text back and hope that on update new unasked-for changes do not appear.
In the Lounge, others have connected this specifically to Safari 3.0b latest, which is what I was using when having this problem. I recently updated to the very latest build of EE 1.60 and installed the Askismet and Bad Behavior extensions; it seems—but I cannot be certain—that these problems did not occur when I was using 1.52 and Safari 3.0b, but I perhaps I simply did not notice (though I do not find any incorrect pages now). Already installed were these plugins that make changes to text: XML Encode, Replace String, EE Typography, URl and Email Auto-linker.
Any ideas?