Path: utzoo!attcan!uunet!wuarchive!bcm!dimacs.rutgers.edu!aramis.rutgers.edu!paul.rutgers.edu!njin!njitgw!mars.njit.edu!cd5340 From: cd5340@mars.njit.edu (Charlap) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: ATI VGA Wonder MOUSE + Two Serial Ports: Possible? Keywords: ATI Mouse Serial Message-ID: <2194@njitgw.njit.edu> Date: 31 Jan 91 18:58:29 GMT References: Sender: news@njitgw.njit.edu Organization: New Jersey Institute of Technology Lines: 18 Well, here is the list of the interrupts used by systems, as they pertain to mice: INT Do not use for a mouse if you have a ---- --------------------------------------------------------- 5 An IBM PC or PC/XT with a hard disk (or an AT with an XT hard disk controller) 4 Serial ports COM1: or COM3: 3 Serial ports COM2: or COM4: 2 An IBM PC/AT, an EGA card, or a network adapter Needless to say, if you have 2 serial ports, an XT hard drive controller and an EGA card, you can't use a mouse without conflict. You'd have to use a serial mouse on one of your COM ports or disable a COM port. --- Dave (cd5340@mars.njit.edu)