As you may or may not be aware, Microsoft has release version 10 of Microsoft Explorer. Please be advised that currently partner portal does not support Internet Explorer 10. If you currently utilize this version you will need to have it uninstalled to utilize the partner portal. Windows updates are automatically installing Explorer 10 so it may be installed on your PC without your knowledge.
We have no estimate from our software vendor as to when the partner portal will be functional with Explorer version 10.