inbound emails in Plain Text are blank, all other o.k.

can copy and paste the blank body of email into Word and
text shows up.

in display settings can change font size from small to
large and back to small and text shows up.

running EX2000, Outlook2000 on NT4.0 workstations, all
with latest patches.

changing the font size resolves the issue for several
months but then the issue returns.

any ideas.
thanks.
paul