Ended up uninstalling them completely, reinstalling them, getting latest drivers etc.
Got everything back to normal except sideways scrolling.
(I also do have the sideways scrolling enabled in the mouse properties panel in settings->control panel)
I can take this mouse, (which is not scrolling sideways on this computer) to my other computer & the sideways scrolling works fine.
I can also take the mouse from the other computer to this one, and the sideways scrolling works fine.
I have already spent an awful lot too much time on this, it must be something easy I am overlooking.
Thanks for any suggestions/advice
the mouse is a microsoft wireless mouse, with latest version 6.2 drivers from the m$ site. Brand new batteries etc. System is xp. Everything is up-to-date.
Edited by mequestion, 17 December 2007 - 10:49 AM.