Thanks for the info Ben !
VPP was just one thing I was not sure of.
I just started the download of the manual and let it go on this night (it is 2:49am in holland at this moment) and my cable connection is not so fast, you know.... :( 6MB has arrived yet.

Peter: I thought (and still hope) the HMOS 8751 did not have the lock bits...I'll let you know if I know more about it.

Henk