Office 2003 and Office 2007 on same PC, Thesaurus wont work in Word 07

[Jim Sharky]

.....subject line kinda says it all.

I have a user running a VAIO laptop (Vista Business) and he wanted to run
BOTH Office 2003 AND 2007.

They seem both seem to work (barring a few little strange occurrences),
however, the one thing he's noticed that definitely doesn't work is the
thesaurus in Word 2007.

When you highlight a word and then do a SHIFT + F7, you get nothing. Same
for if you click the Thesaurus button.....does nothing.

Works fine in Word 2003 version on same laptop....but not in 2007 version.

Any assistance always appreciated (The four golden As)

(e-mail address removed)