Accessing files on Desktop from in network computers

I recently had my desktop tuned up and when I recieved it back they updaed
the Bios and now I cannot open microsoft (xcel, Word, Powerpoint) file with
the standard application. It opens as Read only and the content of the file
is blank. I can open the word document with clipboard, excel with the
internet option and Powerpoint with viewer. In additon, when I try to attach
docs to an email through the desltop short cut, it gives me the following
error "ccess to the following potenially unsafe attachements has been
blocked: xxxxxxxx.INK"

Any thoughts?
--
JCS