AOH :: 1000.TXT|
Logitech document 1000: "Mouse Standard Diagnostics"
Document Number 1000
Mouse Standard Diagnostics
The following diagnostics should help determine most problems you might
encounter when installing/using Logitech mice.
In order to determine the source of the possible conflict, try booting the
system with a DOS disk in drive A: (no AUTOEXEC.BAT or CONFIG.SYS files).
Replace the DOS disk with the mouse driver disk (disk #1), and type the
MOUSE SER (for a mouse on COM1)
MOUSE SER 2 (for a mouse on COM2)
MOUSE BUS (for a bus mouse)
MOUSE PS2 (for a PS/2 mouse)
If this solves the problem, then there is either:
1) A conflict with something being loaded in the AUTOEXEC.BAT or CONFIG.SYS
file. To determine actual conflicting software, add back the contents of
the AUTOEXEC.BAT and CONFIG.SYS files one line at a time until it fails.
Sometimes loading these utilities in a different order is all that is
required to solve the conflict. In general, we recommend loading the
mouse driver before any other resident software.
2) There is another mouse on the system (or, at least, the mouse driver
thinks so!). For example, some video cards have built-in bus mouse ports.
If you were to try to use a serial mouse on a system with one of these
video cards, it would be necessary to force-route the driver to the serial
port by using MOUSE SER to load the driver.
If the problem persists, make sure there are no other devices on the
system using the same interrupt (IRQ) or I/O address as the mouse. The
proper settings are as follows:
IRQ (see JMP1 on BUS card)
NOTE: COM3 and COM4 usually use IRQ's 4 and 3 respectively. Since mice cannot
share IRQ's, a system should not be configured with a mouse on COM1 and
another device on COM3 (or a mouse on COM2 and another device on COM4).
If you are unsure of the IRQ used by a particular device, it should be
temporarily removed to see if it has any effect on the problem.
If the symptoms continue, try the mouse on another system to verify that the
mouse is working properly.
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