This error comes up as soon as Excel is run. No specific documents, it happens to all, even a blank document when Excel is run for the first time. I have tried both Office 2003 and Office 2007 but the error comes up on both versions. I have followed the steps all the steps outlined in http://support.microsoft.com/kb/280504
to no avail. Thinking this may be related to hardware, I have had the manufacturer replace the RAM, CPU, and motherboard. This is driving me up a wall. Please help!