ksiemb :
Were there any software updates yesterday (including Windows) that may have affected drivers ? In device manager you could try roll back of drivers or do a Windows system restore to date prior to problem appearing.
Thanks. No there was not a software update to my knowledge. There was an attempt for "Run LiveUpdate" with Norton defecting a problem, but the warning said that I should wait for 24 hours and check again. I did and the Norton "Run LiveUpdate" took place about 24 hours later and the "At Risk" warning which was showing on "PC Security" seemed to be resolved with a "Protected". Did that correct the problem? No. There is also a sound as though an UBS is being plugged in, when it is not.
Thanks again....still trying to work through your suggestions with my lack of knowledge.
Kai999