Office 2003

Good Afternoon,
Office 2003 programs freeze when I perform a Copy or Cut from E-mail.
System: Athlon 64 2.2Ghz
Memory: 1.5 Gig
HD: 100 Gig
Op. Sys. XP MEdia Center, Latest SP
Internet ACCESS: Modem
The Programs “Unfreeze” when I leave the Internet.
ANY IDEAS?