In Outlook Express-
When "New Mail" button or "Reply" button is clicked, dialog box pops up:
There was an error opening this message
There is not enough Memory
No error number associated with this.
260MB of RAM, 1.74GB disk space on C drive.
384MB mem reserved in Virtual Mem
Pentium 4 processor.
First time getting this error, I reinstalled the Win2000 operating system after a drive format. That fixed the problem for a brief moment, untill I copied the saved dbx files back into the drive.