How to increase mouse sensitivity beyond normal limit?

It's one faster.

My office PC (DELL) runs WinXP. It has an el-cheapo DELL laser mouse. I find that maximum mouse sensitivity in Control Panel is not fast enough for me.

Is there a way to take my sensitivity beyond the Control Panel limit?

Can my mouse go to 11?

I am not sure a software solution will be ideal (or even possible) here.

Are you averse to bringing your own mouse to work? Many gaming style mice have hardware DPI selectors, which let you switch on the fly from, say, 200 DPI (glacially slow) to 2000+ DPI (your cursor is now on fire).

Something like the Dell J660d mouse can be picked up for around $10

http://www.google.com/products/catalog?q=dell+J660D

and it has the requisite hardware switching of DPI:

Adjustable DPI: 400, 800, 1200 or 1600 DPI with a Click of the Mouse.

Is "Enhance pointer precision" checked?

This enables mouse acceleration - the pointer will move faster at higher mouse-speeds.