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> Bob Kirk writes: > My problem is that little pigtail db-9 to PS@: It broke (open wire at the > strain relief) and I replaced it with a single db-9 to PS2 adapter (no pigtail) > and got no response. Tried again with a second brand with same lack > of response. Is there something unique about the TP750 pinout? Just a general comment on these PS2 mouse ports. I recently had a bad experience w/ a Toshiba6400 portable. I blew out the PS2 port by plugging and unplugging the mouse while the power was on (at least that's what the repair technician said). Toshiba even prepared for this case because the PS2 port was on a separate card from the motherboard. I don't know whether Thinkpads are as sensitive, but I probably won't ever buy a Toshiba because of this experience :-) ken