As suggested, I upgraded to the most recent version of ZAP (9.0.114,000). During the isntallation setup there was a notice that the computer may run slower for a period of 24 hours.
Not only are some programs still running slower after 24 hours, some programs will not open unless I turn off ZAP. Specifically Internet Explorer and Microsoft Outlook take forever to open, if they open at all.
Running Vista Home Premium (64 bit) with plenty of hard drive space and memory???
Should I go back to the original ZAP I downloaded in July??