This doesn't happen continually, but it happens a lot. I'm sorry, I should give some information first. I have NIS 2011, Version 18.6.0.29. I've had the software for several months without any big problems. This slow down started a few weeks ago and seems to be getting worse. I'm running a HP Pavillion using XP (sp3). I have an AMD Dual Core Processor with 2 GB of memory.
I've been in the computer arena for thirty years,mostly on the software side. Which doesn't mean a lot other then I do look at a problem from all sides and calmly workout a logical plan. I have a third party monitor in my tray, when I hear the drives thrashing or feel a lag in response I click the icon and see all running processes in order of system usage. I also see the percent of CPU, Disk and Pagefile being used. I can sit and watch the EXCESSIVE process climb up to 48-50 percent usage then down some and then back up.
My XP is lean and fast, I keep an eye on performance at all times, I don't have any other types of protection software installed, my drives are defragmenter on a continuous cycle via Perfect Disk software. I run CC Cleaner every day and a full scan runs every night at 3:00 AM. I hope we can get to the bottom of this............Ron Goodman