Ctrl-Alt-End required when using Remote Desktop to another 2k8 server

We have a Server 2008 domain with 2 DC's and several 2k8 servers running Windows Server 2008, SP2, 32-bit.  We noticed that when we try to Remote Desktop (just mstsc.exe) from one server to another, we get an annoying set of dialog boxes requiring a Ctrl-Alt-End to be pressed before entering credentials.

Is it possible to disable this requirement for ctrl-alt-end?  Please see screenshots.
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This happens when you have a custom logon program installed on the server, like HP ProtectTools, which alters or replaces the CTRL-ALT-DEL logon with its own.  

If you are not aware of such software being installed, then that might be worth looking into, to ensure you do not have a piece of credential-harvesting malware running.

Alternatively, you can turn off the requirement for CTRL-ALT-DEL (END is over RDP, but the same thing).  This link shows the local policy, but it's possible to set it up as a GPO the same way.

sureserviceAuthor Commented:
Neil RussellTechnical Development LeadCommented:
What screen shot??
There is a GPO that you can set to require a user to elevate privileges by requiring them to input their full password, but it does not look anything like this. Check this machine for malware.
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