I don't have 2003 on my Windows 7 machine but you could try these:
Locate the POWERPNT.EXE file (ProgramFiles/Microsoft Office/Office 11??)
Right click > Properties
In Compatability try Run in Compat mode for XP SP3
If this fails try ticking "Disable Desktop Composition" NB this will affect
display a little
--
john ATSIGN PPTAlchemy.co.uk
Free PPT Hints, Tips and Tutorials
http://www.pptalchemy.co.uk/powerpoint_hints_and_tips_tutorials.html