Notes and Powerpoint XP

Hi all,
Having trouble on a number of Laptops running WinXP Pro
SP1 with Office XP SP2 and Notes 5.0.11, namely that when
Notes is open, Powerpoint crashes in the middle of working
on a presentation and we can't get back the "recovered"
file.

Any ideas (apart from uninstalling and reinstalling or
applying the latest patches, I've done all of that)?

Thanks,

Eoin.