Microsoft Office Question

Hi There,

I cant seem to find a solution anywhere for this problem, i have a client who is getting this error message:

Runtime Error!

Program: C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE10\WINWORD.EXE

This application has requested the runtime to terminate it in an unisial way. Please contact the applications support team for more information.

i have done a detect and repair and also reinstall office…

i thought it may have been one document that was courrpted however any word document has this error come up…

any help is greatly appreciated