Error: Assertion creating "backing store" failed at line 908 of file ..\gdev\ntgdev.c
When ungrouping grouped elements in a layout, ArcView returns the error message:
"Assertion creating "backing store" failed at line 908 of File ..\gdev\ntgdev.c.'
This seems to be related to the machine's video card.
Solution or Workaround
Option 1 - Ungroup the layout while your machine is in VGA mode: 1. Quit all applications 2. Reboot your machine in VGA mode 3. Start ArcView 4. Make the necessary changes to the layout 5. Save your project 6. Quit ArcView 7. Reboot your machine in normal mode 8. Continue your ArcView work as normal
Option 2: Check your video card manufacturer's web site for a newer drive. This may provide a permanent fix.