After I upgrade to Toad 9.x, I cannot see any BLOB or CLOB columns in the Schema Browser | Data tab.
Verify that the option to "Don't select BLOB/CLOB fields in data grids" is NOT enabled in View | Options | Schema Browser | Data and Grids.
When checked, the data panel of the data grids will not display BLOB or CLOB fields. This can save loading time. When unchecked, the field is selected and displayed. The default is unchecked.
If already unchecked, try resetting the desktop.xml file:
1. Close Toad
2. Go to Toad Installation folder\User Files
3. Rename or delete desktops.xml
4. Re-start Toad.