As you have un-installed I doubt you have pressed F8 and placed Excel into
extended mode.
Try re-installing/upgrading your wheel mouse drivers

Signature
HTH
Nick Hodge
Microsoft MVP - Excel
Southampton, England
nick_hodgeTAKETHISOUT@zen.co.uk.ANDTHIS
> When i open excel , suddenly i have a cell selected and if
> i try to move the arrow it selects all the cells moving ot:
[quoted text clipped - 4 lines]
>
> HELP ME PLEASE