"shakey" curser

[jagcoach78]

When I try to be very smooth with my erase tool the circle is "jumpy" instead of smooth. Is this a mouse problem, or maybe a video problem with my computer.

[mkeefe]

If your mouse has a track ball open up the little door, clean off the ball and 3 or 4 rollers.

Matt

[jagcoach78]

I forgot to say that it is optical.

[swinnie11]

are you using a proper optical mouse mat?

Spencer

[Phil_The_Rodent]

Decrease your brush spacing.

[kiwicolin]

Also avoid dark surfaces, I hear that black causes a lot of problems with optical mice

[Phil_The_Rodent]

Ooh and reflective surfaces (metallic mouse pads, glass table tops, etc.). Good thinking.

[kristoficus]

If it is actually caused by laser scattering, get one of the "specialised" mouse matts out there if you can afford it. There are many:

Razor ExactMat
Slicksteel Pro
Everglyde
Icemat (probably got the best name for itself)
Corepad Organge/Blue

All of those are designed and manufactured specifically for optical mice to give the best coverage and traction etc.

If the mouse is dying, i recommend the Logitech MX1000. Ive had mine for a good while now and its served me well...And its around £30 now (i paid £50 months back when it was still the new kid in town)