Device Mgr shows Network Device is ok - green. Properties show correct info. This was a clean install of MC2005. I had no problem loading Sata drivers when install asked for. The problem is something in theMC2005 load of the software. Something is not activating or installing. When I did an unistall on this same HD and zero'd out HD and installed XP OS networking is fine., everything works. Then I reformatted HD, zero'd out again, reformat and clean installed MC2005 its same old story - its like the software loaded(about 35min install) off the cd's but not all of it is running. When I click on the MC icon in Start/Win menu it starts up, but then when I click on icons within MC I get messages saying can't run because missing dll's or get error codes and system reboots. If I load XP on pc works fine. Is there something I'm not understanding about MC2005? I thought this was a stand alone OS but it is acting like it won't work without XP being on the HD. I did the 2nd load with XP loaded, then loaded the MC2005 software and when that was all done all I ended up with was XP as the OS with no sign of MC software. Any thoughts?