Are you a user?

I ran across this today which is a very interesting problem that may be the underlying issue that a client is experiencing.  Here are a couple of helpful links on the subject.

http://blogs.msdn.com/b/joshuag/archive/2007/12/04/edit-in-datasheet-locks-or-freezes-internet-explorer.aspx

This is an old post from Josh Gaffey, but some folks are still using the old-er stuff. 🙂

http://tomblog.insomniacminds.com/2008/07/23/sharepoint-branding-issues-edit-in-datasheet-view/