penny-dreadful

Thanks for that but suppose i want to just rebuild the machine and have it put all the software back on. It doesn't do this. It rebuilds the machine fine but seems to think either the software's already on or doesn't need it. When i look at the advertisments on the collection, they point to software that should be installed, but looking at the advertisments for a machine there isn't any? Thanks

Sorry if this is obvious but I'm a bit clueless with all this.... Here's my problem. I've set up SCCM and can build machines XPSP3, allocate out software all fine and dandy, but say when i build a machine with a particular MAC, address it picks up all the advertisements from the collection and installs the software. Then if I delete the machine and build it with a different name the MAC address is already registered in the database, (even if it's in a new collection) so it shows up already on the domain, and approved. The machine will build fine, but no software goes on - when i go to look at the advertisements it just says no matching records can be found. My question(s) then How do i delete the MAC address from the database so SCCM thinks it's a brand new machine. or failing that why doesn't SCCM see that the new machine with a different name, or the same name require the software advertisments set at the collection level Thanks