frank6160 - Thanks for posting your question on the forum!
When the navigation menu on the left of the GUI does not appear, it usually is a result of a javacript error. Try clearing the browser cache, opening up a new browser window, and logging in again.
If this does not work, it may be worth upgrading the firmware on the device.
Regarding the port mirror, please reply to this thread with your port-mirror configuration (remember to remove any sensitive information). What issues are you experiencing with port-mirroring?
Let us know if you have any further questions or issues.
Installed firefox and can see all GUI links. Will upgrade firmware and see if it clears IE issue as I have cleard browser cache and it didn't help. On the mirror issue I have ports 5,6 mirrored to port 7 to capture voip calls to a recording device. The device connected to port 5 doesn't record but port 6 is fine. Unit has been reset. I will get config and update.
resolved mirror issue by disabling and renabling it