I was recently giventhis used keyboard & I went to the trouble of a very god cleaning job on it... so I would like to be able to use it. However, the key on the plug is horizontal compared to vertical on my (IBM-compatible) tower where it plugs in. Also, there is a touch pad on the KB & 2 female sockets which have the same horizontal key pattern. A manual would be most helpful...but so far, I have not been able to locate same. Any help to point me in the right direction would be most helpful; and greatly appreciated.