I have one user who can access their email account via webmail with no problems but when trying to access via the Windows 8.0.1 client it accepts her password then crashes with Windows error 'Novell GroupWise Client has encountered a problem and needs to close. We are sorry for the inconvenience'.

Similar behaviour occurs when trying the Mac client.

I can't find any structural or content problems with the account using GWCheck.

Any hints on what I should be looking for would be much appreciated.

Thanks in advance.