Peter,
I checked the same in our LAB and it is working fine. Can you provide below information as it help me in reproducing the issue?
1: What is the DRAC5 FW version?
2: Which Client Operating system is used to launch DRAC5 GUI?
3: Which Browser is used to launch DRAC5 GUI?
4: If you are using Internet Explorer, Are you added iDRAC IP to Internet explorer trusted site and configure security as Medium for Trusted Sites
5: Which Plugin Type Are you used for launching Virtual Console (You can check this from Console -> Configuration page)
6: If you are using JAVA plugin can you let me know which JAVA (version) installed on the client is?