Hello,
Do you have the switch in Layer 2 or Layer 3 mode. In layer 2 mode the switch can have only one IP address. This can either be static or DHCP. The switch must be in layer 3 mode to assign IP addresses to each VLAN. Please see page 258 of the admin guide for how to set IP address for each VLAN. If you need to set to layer 3 please see page 61. Also, please make sure your device is on the latest firmware version 1.3.0.59. If you still have trouble try using a different browser. I tried this using Firefox and experienced a similar issue to what you describe. I switched to IE9 and it worked fine.
If you have completed these steps and are still having difficulties please call the Cisco SBSC at 866-606-1866 between 9am and 6pm your local time for further assistance.
~Mike Vandergrift
SBSC Engineer
