One thought: is there any possibility that there could be partitioning software on the hard disk? Another thought. I got this from the Windows 98 readme file, which happens to be posted at http://cns.tstc.edu/w3/3020/readme.htm It states that SU99xx errors can be sometimes be caused by low conventional memory. Also, I don't believe you told us: how much RAM do you have? Processor speed? Was the PC in question working okay before? Susan Sutherland >From: David Williams <[log in to unmask]>> >I disabled virus checking and also disabled Level2 cache an I still get it. > >Any other ideas on what I can try ? > >The SU99XXXX error messages are generated when Windows does >not have a specific error message for the problem or cannot diagnose >the issue. > >Typically, the first thing I would check is the CMOS settings of your Bios. >I would disable the Virus checking and disable the L2 cache for the >duration of setup. You can turn the L2 cache back on after you have >completed installing Windows. This is a little slower, but is a work >around. >Personally, I would not use the Bios Virus checking as it is the culprit >for a great many issues with PCs. ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com Visit our website regularly for FAQs, articles, how-to's, tech tips and much more http://nospin.com - http://nospin.org