5 machines upgraded, 1 laptop and 4 servers. Had to problems from 2 machines (1 server/1 laptop) because of the loss of 3rd party drivers. Server lost 1Tb drive cage. Laptop lost all peripheral devices including USB, printer, dock. etc. Uninstalled from the laptop due to driver problem. Also experienced unexplained NIC activity and loss of IP address, unexplained CPU activity, and video card problem. Have halted all installs on the other laptops and servers. SP4 seems to be as buggy as the NT4/SP6. Way to go MS!
AMD2600+,AMD2000+,P4/1.8,P3/800,Via/800,P3/700 and a farm of Dells; OS/2, Linux(RH), W2K, NT4, Novell, UNIX. So little time, so many OS's