Web Designer 10 Pre. latest update - export website error - failed to setup bitmap

[lyleosborne]

Any clues for this error: "Failed to setup bitmap for rendering. Bitmap may be too large." Would love to know which bitmap - perhaps I could fix this issue? If you want the xar it's 1.73 MB. The document info says it has 45 bitmaps and is 46MB in size. This is the Lycan theme with all images optimized at 92dpi. Any help appreciated. Running 64-bit on Win 7 with 4 gig ram.