I recently inherited a client who had a massively misconfigured HP Proliant ML370 G4 running Windows 2003 Server. I reinstalled the OS, loaded SP1, everything works great except the ILO controller shows that dreaded yellow exclamation mark in Device Manager, and states "Windows cannot load the device driver for this hardware". I've reloaded the PSP, still same problem. Reinstalled the specific driver (version 5.40), and problem continues. Uninstalled from Device Manager, re-scanned devices, pops back up with the same problem.
I'm open to suggestions!