screensavers

I am receiving small screen called screensavers.
The message is “unable to find path registration”

There is a box to check “OK”

This screen does not come up as long as I am active on the computer, but if I am idle for a min or so a series of these boxes pile up on the screen, one after the other. Some times it locks up the computer and I have to manually shut it off

How can I solve this problem?

Warren