Vista - Microsoft Word 2003 too slow

I bought a new Dell XPS 420 with Microsoft Works Plus 2003 preinstalled. Everything works fine except Word 2003. Certain things I try to do take forever. For instance, trying to insert a chart, print anything, copy and paste something into Word, and several other things can take 60 seconds or more to load. During this time, the program is basically froze until it completes. If I try to close it, I get the ever present “program not responding” message.
I've tried uninstall/reinstall and ran “ repair Word”. Nothing seems to help. I downloaded the trial version of Word 2007 just to see if it would work, and it worked fine.
I'm running Vista Home Premium 64bit.
If anybody has any ideas, I would appreciate it. System Info below.


OS Name Microsoft® Windows Vista™ Home Premium
Version 6.0.6001 Service Pack 1 Build 6001
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name
System Manufacturer Dell Inc.
System Model Dell XPS420
System Type x64-based PC
Processor Intel(R) Core(TM)2 Quad CPU Q8200 @ 2.33GHz, 2327 Mhz, 4 Core(s), 4 Logical Processor(s)
BIOS Version/Date Dell Inc. A06, 6/23/2008
SMBIOS Version 2.5
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume3
Locale United States
Hardware Abstraction Layer Version = "6.0.6001.18000"
User Name
Time Zone Central Standard Time
Installed Physical Memory (RAM) 6.00 GB
Total Physical Memory 5.93 GB
Available Physical Memory 4.35 GB
Total Virtual Memory 12.0 GB
Available Virtual Memory 10.4 GB
Page File Space 6.23 GB
Page File C:\pagefile.sys