Session browser columns that disappear or missing on the left side of the screen (94093)

I lost visible columns in session browser. All I see is Row#, then a box below that with a number 1. Selecting and deselecting visible columns does nothing.
Step to replicate:
1. Go to Session Browser
2. Right click to view the screen Top to Bottom.
3. Group by (None)
4. if I happen to drag the Row # column all the way to the right, there is not dragging it back to see the other column.

WORKAROUND:

1. Close Toad
2. For Windows XP, go to C:\Document and Setting\username\application data\Quest software\Toad for Oracle\11.5\user files folder
For Windows 7, go to C:\user\username\app data\Roaming or Local\Quest software\Toad for Oracle\11.5\User Files\GUISettings folder
3. Rename the sessionbrowsertree.ini
4. Re-start Toad

STATUS:

Waiting for fix in future release of Toad for Oracle.