Thank you for the quick reply.
No you are not impolite and yes I have been asking myself the same question while hitting mysefl on the head.
I did it because I thought it was something that should be done rountinely to keep the comp working well, now I know better.
I have tried system restore but got the answer System Restore does not seem to work on this computer.
I did put the Vista CD in the drive last night but I only saw the option to Install Vista... I didn't see one to do a system restore or to do a repair install and was afraid to click on Instal Vista in case I started something I couldn't stop.
Should I be seeing the options you mention when I read my Vista CD?