Wireless mouse driver won't work with my microsoft mobil 4000 mouse

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http://askubuntu.com – I installed Ubuntu 10.4 amd 64 today but the drivers for the mouse are terrible, the cursor moves so slow it's not usable. I've tried setting the speed of the mouse to top speeds but it didn't help at all. Any suggestions as to what I can do? Linux Newbe here. Thanks. (HowTos)