All very impressive, until I try to export the fractal as a JPEG. This is the "default" fractal (seen when you open the app); hit "Cmd-P", tell it to export as "frac" in Documents (or any other filename/folder), hit "Export to JPG" and …

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_INVALID_ADDRESS (0x0001) at 0x15605000

Thread 0 Crashed:
0   com.apple.CoreGraphics         	0x9037bb81 sseCGSBlendXXXX8888 + 749
1   com.apple.CoreGraphics         	0x903c2dce RGBA32_image + 1760
2   libRIP.A.dylib                 	0x942f93a7 ripl_Mark + 40
3   libRIP.A.dylib                 	0x942f2bb7 ripl_BltImage + 857
4   libRIP.A.dylib                 	0x942f25f5 ripc_RenderImage + 163
5   libRIP.A.dylib                 	0x942f048d ripc_DrawImage + 2876
6   com.apple.CoreGraphics         	0x90336ac1 CGContextDrawImage + 403
7   com.apple.ImageIO.framework    	0x9190b832 CGImageCreateCopyWithParameters + 1477
8   com.apple.ImageIO.framework    	0x91902c5c CGImageDestinationAddImage + 4776
9   com.apple.AppKit               	0x933bc4bd +[NSBitmapImageRep(NSBitmapImageFileTypeExtensions) representationOfImageRepsInArray:usingType:properties:] + 2289
10  com.apple.AppKit               	0x93437fd8 -[NSBitmapImageRep(NSBitmapImageFileTypeExtensions) representationUsingType:properties:] + 1374
11  com.robinstewart.TeraFractal   	0x0000310c -[MyOpenGLView dataWithJPGInsideRect:] + 680
12  com.robinstewart.TeraFractal   	0x00002e1e -[MyOpenGLView exportPanelDidEnd:returnCode:contextInfo:] + 148
13  com.apple.AppKit               	0x934b3cb8 -[NSSavePanel(NSSavePanelRuntime) _didEndSheet:returnCode:contextInfo:] + 306
14  com.apple.AppKit               	0x933ec81a -[NSApplication endSheet:returnCode:] + 359
15  com.apple.AppKit               	0x93482d76 -[NSSavePanel(NSSavePanelRuntime) ok:] + 311
16  com.apple.AppKit               	0x93362dbc -[NSApplication sendAction:to:from:] + 107
17  com.apple.AppKit               	0x93362d15 -[NSControl sendAction:to:] + 101
18  com.apple.AppKit               	0x93364ec1 -[NSCell _sendActionFrom:] + 168
19  com.apple.AppKit               	0x933776a1 -[NSCell trackMouse:inRect:ofView:untilMouseUp:] + 1271
20  com.apple.AppKit               	0x93395289 -[NSButtonCell trackMouse:inRect:ofView:untilMouseUp:] + 848
21  com.apple.AppKit               	0x93394b39 -[NSControl mouseDown:] + 757
22  com.apple.AppKit               	0x933523e3 -[NSWindow sendEvent:] + 5279
23  com.apple.AppKit               	0x93793231 -[NSSavePanel sendEvent:] + 423
24  com.apple.AppKit               	0x93344384 -[NSApplication sendEvent:] + 5023
25  com.apple.AppKit               	0x9326ee1e -[NSApplication run] + 547
26  com.apple.AppKit               	0x93262d4f NSApplicationMain + 573
27  com.robinstewart.TeraFractal   	0x00001fe6 _start + 216
28  com.robinstewart.TeraFractal   	0x00001f0d start + 41

Seems like CoreGraphics isn't happy with what it's being asked to do. This is on 10.4.11 on a dual-core 2GHz MacBook.