Overnight, an entire area, almost 20 PCs or more, are suddenly getting (halfway upon bootup) the following message (the DOS banner type Novell alert): NetWare Alert Message NCP called NiosFree with an invalid/corrupted or already free memory block E8790B48 In the top right hand corner it has a error ID of NIOS-202-179 I have also seen other, but similar, variations. Another PC suddenly was getting: Abend Messsage An installed VxD module at C007CBDB attempted to access an undefined NLM function (CNWIpxGetSocketInfo). NIOS-202-86 This came on suddenly. People reported that on Friday everything was fine. What is even worse, is that sometimes when printing to a Novell print queue, or running various programs on the local hard drive (it's pretty random) - there will suddenly be two beeps (dee-dah) and the entire screen will go black. The machine will either sit there totally black (you can't do anything but move the mouse, not even CTRL-ALT-DEL) or one machine actually rebooted. Another, the mouse would not even respond. What the hell happened??? Various other PCs throughout the LAN (about 5 in total) reported the same thing. But it was mainly concentrated to one section. Gads!!!! I've scoured the internet - found a couple people out there posting messages about it, but no real data or resolution. Thanks!! Mike

I forgot to mention, these clients are Win98, not sure on the NW client version, connecting to primarily NW 4.x and 5.x servers. Mike

Got the same message, different memory block (E7650cc). Did you find out what the problem was?