excel: document not saved

Hello,

There are about 30 users who share a workbook and when they attempt to save some changes they’ve made they receive the following error.

‘Your changes could not be saved to ‘xxxx.xls’, but were saved to a temporary document named ‘xxxx.xls’. Close the exisiting document, then save it under a new name.’

When they try to save under a new name, either clicking on save or save as, it bring up: ‘Document not Saved.’ The only way it would save is if I selected save as workspace.

I’ve read some cryptic answers about Anti-Virus being the cause or loss of network connection….any other possibilities?

They are mixture of users using either NT or WinXP with either Office
2000 or 97.