I apologise for the delay in my response as I was pre-occupied with some technical quotations.
I did a safe mode boot as suggested and then opened both outlook and word, which worked fine w/o any flicker/refresh.
I followed yr next step of sfc /scannow and no errors were found. Ergo, I guess following part 2 of the solution would be meaningless and hece, I did not do it. Would it help if I uninstalled MS Office 2007 completely, delete the folder and then re-install
Please advise and thank you for your co-operation.