optical mouse dpi problems

[\(\) |V| 3 G /-\\]

hey all

got a microsoft intellimouse explorer v3.0, USB and it seems i`ve lost the
resolution of the mouse movement.

it's not major, but it's rather 'grainy'. using asus PC Probe as an example,
the time graph gives temp vs real time. it gets refreshed every 30secs. i
cannot always see the 30sec refresh value. eg, i have mouse pointing to
10:30:00, if i move mouse ever so slightly, it will read 10:31:00 value, and
not 10:30:30.

afaik, the v3.0 mouse has a dpi of 600. as all the later mice (including the
highly praised logictech MXs') have the same dpi reading.

i`m running winXPhe, and a7n8x dlx rev2.0.

i`ve JUST tried my dads 1/2 sized kensington USB optical mouse on my pc, and
it's the same - misses a pixel. i`ve just tried my mouse (MS explorer) on my
dads pc - winXP, intel p4 based machine and it's perfect. also, on my pc,
i`ve tried dropping the mouse speed a few notches, and dropping the screen
resolution down to 1024x768 and 800x600 - still no luck.
both mine and dad's pc were using standard winXP mouse drivers - PnP
literally.

any help appreciated
tim draper

 

[Bill Turner]

got a microsoft intellimouse explorer v3.0, USB and it seems i`ve lost the
resolution of the mouse movement.

_________________________________________________________

Optical mice are somewhat sensitive to the surface they run on. Try a
different mousepad or even a plain white piece of paper. Shiny surfaces
seem to be especially poor.

 

[\(\) |V| 3 G /-\\]

weird that.

i`ve tried my desk (laminated pale browny colour) and it's the same. i got a
proper icemat (www.icemat.com) designed specifically for optical mice, and
also tried dad's pc table.

it's not like a pause, or dirt or interference problem. the cursor doesnt
jump around the screen, it just doesnt seem to have the resolution on MY pc.

my pc.....

.. x . x . x . x . x . x . x . x .

dads pc
.. . . . . . . . . . . . . . . . . . . .

.. = mouse postion update onscreen
x = no mouse update.

i`ve also tried the mouse in the PS2 port on MY pc - mouse resolution is the
same - more or less every other pixel. also just tried the icemat on dads
pc - it's fine.
tim

 

[\(\) |V| 3 G /-\\]

would you believe it's a monitor refresh rate problem?!?!?
turn refresh down to 60hz, and it's fine.
anything above 60hz (70, 72,75,85 hz) all made the mouse pointer refresh
position more coarse.

swapped monitors for an old 15" adi and same problem - so thats monitor out
of the equation. next up is gfx drivers (trying nvidia's old 30.82 drivers)

fingers crossed!

tim

 

[Larc]

| would you believe it's a monitor refresh rate problem?!?!?
| turn refresh down to 60hz, and it's fine.
| anything above 60hz (70, 72,75,85 hz) all made the mouse pointer refresh
| position more coarse.
|
| swapped monitors for an old 15" adi and same problem - so thats monitor out
| of the equation. next up is gfx drivers (trying nvidia's old 30.82 drivers)
|
| fingers crossed!

I hope your monitor isn't a CRT. 60Hz would cause a headache inducing flicker.
Maybe your video card drivers are screwed up. Try uninstalling and then
re-installing the most recent drivers if you haven't already done that.

Also, did you install the latest Microsoft Intellipoint drivers (IP5_0Eng.exe)?

http://www.microsoft.com/hardware/mouseandkeyboard/downloads/default.aspx

Larc



§§§ - Please raise temperature of mail to reply by e-mail - §§§

 

[Bill Turner]

would you believe it's a monitor refresh rate problem?!?!?
turn refresh down to 60hz, and it's fine.
anything above 60hz (70, 72,75,85 hz) all made the mouse pointer refresh
position more coarse.

_________________________________________________________

How interesting. Thanks for the update.

 

[Dave Hull]

Go to Control Panel, Mouse, Hardware Tab, Properties, Advanced Settings Tab.
What do those settings say?

 

[\(\) |V| 3 G /-\\]

i feel somewhat a large pr!ck!

i think i had the mouse movement setting too high - as i`ve turned it down
and it's fine now. however, i cant understand the 60hz refresh 'bug'. 60hz
and it's fine (with max mouse speed), anything above 60hz and it misses
pixels.

another thing is that i cant remember it happening ALL the time - just over
the last few months. i`ve had optical mice for 2-3 yrs now.

still, thanks for all the input and help.
tim draper

would you believe it's a monitor refresh rate problem?!?!?
turn refresh down to 60hz, and it's fine.
anything above 60hz (70, 72,75,85 hz) all made the mouse pointer refresh
position more coarse.

swapped monitors for an old 15" adi and same problem - so thats monitor out
of the equation. next up is gfx drivers (trying nvidia's old 30.82 drivers)

fingers crossed!

tim

 

[\(\) |V| 3 G /-\\]

yes it is CRT - but dont worry, 60hz was just for testing, i`m now back upto
my normal 85hz's

tim

 

[Will Dormann]

hey all

got a microsoft intellimouse explorer v3.0, USB and it seems i`ve lost the
resolution of the mouse movement.

it's not major, but it's rather 'grainy'. using asus PC Probe as an example,
the time graph gives temp vs real time. it gets refreshed every 30secs. i
cannot always see the 30sec refresh value. eg, i have mouse pointing to
10:30:00, if i move mouse ever so slightly, it will read 10:31:00 value, and
not 10:30:30.

Always use the PS2 port for your mouse, if possible. You'll get much
smoother motion compared to USB. Also, increase the clock speed of
the PS2 port for even smoother action. Logitech drivers allow up to
200Hz. With a Microsoft mouse, you may be limited to 100Hz.


-WD