Runas CMD - Everytime Window gains focus, I have to turn off Insert?

This is a general windows 7 question. I log in with my nor开发者_JS百科mal account and then runas a command-shell with my admin account. I use it so I can just up-arrow my last RDP connection and change a few letters to RDP into a different machine. The problem is that recently (I don't know what changed), when I'll do something outside of that elevated command-shell and then go back into it to RDP into a different machine (up-arrow, change a few letters from the previous RDP, then hit Enter), my Insert key is always active. So now I have to turn off Insert everytime my command-shell gains focus.

Does anyone know why this might be or what I can do to disable it? TIA!

A rebuild of my system stopped this behavior from happening. I know that's not a good answer but it's the only one I found--or anyone suggested.