WordPerfect/WordPerfect Suite 8
we have noticed of late that whenever we exit out of WordPerfect, a large red "X" flashes across our monitors. It happens in nanno seconds, but once you realize it's happening, you can see it each time. This is happening on each of our 3 office computers which are linked via wireless network. Other programs that are running are Outlook and occasionally Timesolve and Quickbooks, but only 1 machine has the latter two programs. Have you heard of this before? Does it have anything to do with a warning that this version is no longer supported or soon-to-be non-supported?
The red X would be to do with your network OS more than WP. However, version 8 is getting very old and you should seriously consider upgrading. You can get OEM versions of WP here very reasonably: