I've been running Office 2003 professional on Vista for about a month. All
of a sudden a couple days ago, Excel decided that it could not find and open
my files when I double clicked on their icons. It would give a warning to
that affect, and then open an empty excel window. If I then used the
file/open method to open the same file it worked OK. But that is too
cumbersome, having to use that method for every file. Plus, it just happened
out of the blue, because it was working right for weeks before this.

I recovered Windows to a point in time before this started happening, and
also uninstalled office and re-installed office. This has not fixed
anything. Does anybody know what is going on here?