Note: this works for me, your mileage may vary, it's worth a try, let me know if it helps. if you've just started testing with SCCM you'll no doubt see this when imaging a client over and over, after you image the computer you cannot image it again until you right click on the computer in SCCM and choose 'clear last PXE advertisement' when you do that, you should be able to image the computer again, which is great when you are testing clients over and over to get your Task Sequence working..
