Malware was my first guess, but I starting to believe it is a corrupt file. But trying to find which file is corrupt is a problem. I am leaning towards a corrupt file because I installed Google Chrome. The website logos are fine. While in Internet Explorer if I copy the logo to clipboard and paste it in paint, the logo is no longer inverted.
Vista (Service Pack 2) has had all the updates applied. None show any errors.
System restore was applied using a restore point prior to the unreccomended shutdown.
The system is an Acer 5735Z, Intel Pentium Dual T3400 with 2GB RAM.