Random Imaging

This is going to seem like a strange question, but here it goes. Since
upgrading to ZEN 7, some workstations that are set to boot to PXE
first, then to the hard drive, are randomly being re-imaged without the
workstation being told to re-image. This has happened on about 4
occasions, with both Win 98 and Win XP PCs. I have doubled checked my
imaging settings for the server, groups and indivual workstations, and
the send image flag is not set on them. Has anyone else seen this
happen, or am I going nuts? Thanks.

--
Chris Gotstein