if you go to OE>tools>options>security tab>and remove the
check mark from the 4th one down it may resolve this problem for you.
You could also take a look at the help>read me file in OE and this will
explain the 'problem', under new features in this release.
You could also bookmark the following link, where you can search the
previously asked questions over many years, a very useful site. http://www.google.com/advanced_group_search?hl=en
Every attachment is potentially unsafe even if it is from a known and
trusted
source and IT IS EXPECTED. The Klez virus plays nasty tricks on the unwary!