I have been asked about this problem by a family member. They are not able to open email in the in box. A click on the yellow envelope gives unreadable info. In addition the address book has disappeared. They can open the mail satisfactorily on their other pc if they remember to check it before the faulty one.. There is no other problem with the PC which has virus etc protection.
Any ideas please does the detect and repair function in Outlook sort this sort of problem.