OM not found

Hello everybody:
Im facing this weird problem on my SUN V890 running SOL9, from time to time I keep getting this error from the prompt when i press enter for blank:
OM: not found

sometimes if I entered a coomand it will give me: OM(command name):not found, but repeating the same command it will work:
here is an example:
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root@yuda # cp /etc/inet/ntp.client /etc/inet/ntp.conf
OMcp: not found
root@yuda # cp /etc/inet/ntp.client /etc/inet/ntp.conf
root@yuda #
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I searched the net but no clue yet why it is hapening.

Does any one of you have any idea where to start looking for??

Thanks alot guys

Are you getting this when logged into console (and the console connection is through a terminal server/router/other device)?

THX for your reply RTM.
Im telneting the server from my machine, and there is a router between me and the server.
and this thing is new, I didnt use to have that message before.

It sounds like an escape sequence for the terminal.

Change your terminal type to raw TTY at the client.

THX porter:
sorry Ididnt get how to do that, do you know how to do that on SOL9, and currently Im using putty for telnetting and ssh the servers
regards