Not enough memory

I have a computer running Windows 2000 Pro and often, when I open Outlook Express 6 and click on 'New Message' or 'Reply', I get this message:
'There was an error opening this page. There is not enough memory.'
I don't know if this is a Windows problem or an Outlook Express problem - it is not because there is insuffient memory either in Ram or hard drive.
I've tried Google' - can't find answers.
I'll appreciate some leads on this!

Thanks

 

start~run~eventvwr.exe and OK.

Look for errors/warnings that deal with this problem. Should give a clue for a starting place to troubleshoot.

If you see some that look likely but don't make much sense to you, open the event, click on the icon below the up/down arrow (copies event to clipboard) and paste it (them) here.