Since i installed IE7 on one of the clients i cant open a certain excel
file which includes some macro's. I can open this excel-file on every
other pc without problems. The file contains some buttons which
activate some macro's. After i open the file on the client with IE7
installed i receive the error 'file error: data may have been lost'
after i click OK I receive the message 'runtime error 57121:
application-defined or object defined-error'

Does anyone know what may cause this problem?

Joshua