I noticed this recently when I tried to open a large rar file the yellow triangle with an exclamtion mark appeared in my system tray and informed me that I have a "Delayed Write Failed" error. The file was still decompressing and a gui box appeared with the same message - you know the type a grey box with an OK button - Micro$oft should have the word "whatever" there instead. So I pressed OK and pretty soon more appeared till the whole system slowed down to the point where all you can do is to disconnect the power All this is on my home built box with XP pro sp1 loaded onto my Diamond Max 80gb. The mobo is Asus A7V333 with amd XP1800 processor and 1 gb of DDR ram. I have checked the M$ kb but as usual they don't have anything that could be bang on, on google there are hundreds of similar occurences and it is just confusing me more. Hopefully someone may know what I'm banging on about that can help?