Many thanks for your quick reply.
1) The error occured when I clicked on the eclipse or myeclipse shortcuts.
2) It did not reach splash in either situations.
3) I was able to launch eclipse.exe directly.
HOWEVER – problem seems to be solved:
I was prompted to install the latest Java update this morning – which I did. And I also did launch eclipse.exe directly this morning, after reading your post (and after getting the java update). The bug seems to have been resolved. I can launch myEclipse via the shortcut and the correct workspace seems to be loaded up. I don’t know if this is because of the steps I took, or because of other factors (such as changes to Windows that may have been pushed out).
Hope it stays that way.