I'm having trouble with Pages '09.

I've been using Pages for years with no issues . . . but yesterday as I opened a project to work on - Pages crashed and the error message indicated that it related to SFWordProcessing plugin. (I'll clip in part of that error message below). Now Pages crashes whenever I open it . . . giving the same kind of error.
I have re-installed iWork'09 twice trying to clear this up. Still no improvement.
The file(s) in question open successfully on another Mac I have at my disposal so this issue seems to be connected with this computer.

Also, even if I login as another user on this computer and attempt to use Pages it crashes.

I have shut-down and rebooted in safe mode but when I try to open docs in Pages I cannot see any type on the docs (even in cases where I'm opening up documents I know have content). Even in safe mode . . . Pages crashed once.

My basic info is this: iMac, OS 10.6, iWork'09 [Pages 4.0.2 (751)], Processors 2.4 GHz Intel Core 2 Duo, 4GB 667 Ram

Does anyone know how I can get Pages up and running again?
Thanks in advance for your help!
Paul
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Process: Pages [2626]
Path: /Applications/iWork '09/Pages.app/Contents/MacOS/Pages
Identifier: com.apple.iWork.Pages
Version: 4.0 (727)
Build Info: Pages-7270000~9
Code Type: X86 (Native)
Parent Process: launchd [153]

PlugIn Path: /Library/Application Support/iWork '09/Frameworks/SFWordProcessing.framework/Versions/A/SFWordProcessing
PlugIn Identifier: SFWordProcessing
PlugIn Version: ??? (???)

Date/Time: 2009-09-02 21:32:18.623 -0400
OS Version: Mac OS X 10.6 (10A432)
Report Version: 6

Interval Since Last Report: 1187 sec
Crashes Since Last Report: 2
Per-App Interval Since Last Report: 1175 sec
Per-App Crashes Since Last Report: 1
Anonymous UUID: 15D7CAE8-C1F8-4A32-9560-94961B4B4398

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x000000001d499002
Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Thread 0 Crashed: Dispatch queue: com.apple.main-thread
0 com.apple.ImageIO.framework 0x906f2056 ImageIO_ExpandGray_1Bit_to_8Bit + 362
1 com.apple.ImageIO.framework 0x905dbdd4 copyImageBlockSetTIFF + 2833
2 com.apple.ImageIO.framework 0x905db230 ImageProviderCopyImageBlockSetCallback + 174
3 com.apple.CoreGraphics 0x912ef40b CGImageProviderCopyImageBlockSet + 228
4 com.apple.CoreGraphics 0x912f3c1c img_blocks_create + 348
5 com.apple.CoreGraphics 0x912f3aa1 img_blocks_extent + 85
6 com.apple.CoreGraphics 0x913572f9 img_interpolate_extent + 163
7 com.apple.CoreGraphics 0x9128cdea img_data_lock + 8882
8 com.apple.CoreGraphics 0x91289ee6 CGSImageDataLock + 172
9 libRIP.A.dylib 0x92b99748 ripc_AcquireImage + 2446
10 libRIP.A.dylib 0x92b973be ripc_DrawImage + 1245
11 com.apple.CoreGraphics 0x91289b60 CGContextDrawImage + 450
12 com.apple.Keynote.sfrendering 0x024447b2 -[SFRBitmapRenderer drawInRect:] + 258
13 com.apple.Keynote.sfrendering 0x02443fe5 -[SFRImage drawRect:] + 1669
14 com.apple.Keynote.sfrendering 0x02443953 -[SFRImage renderIntoContext:] + 67
15 com.apple.Keynote.sfrendering 0x0245154e -[SFRRenderable renderLayeredIntoContext:] + 206
16 com.apple.Keynote.sfdrawables 0x01d89ff4 -[SFDDrawableAttachment(Private) privateGenerateCachedImageInContext:] + 1908
17 com.apple.Keynote.sfdrawables 0x01d8924f -[SFDDrawableAttachment(Private) privateDrawCachedImageInContext:container:] + 79
18 com.apple.Keynote.sfdrawables 0x01d864d2 -[SFDDrawableAttachment drawInContainer:partitionNumber:canvas:dirtyRect:] + 1282
19 SFWordProcessing 0x0203bf78 -[
Et cetera, et cetera