This has now happened several times, last time it was caused by my computer just switching off.
When starting TOAD again I got the following errors:
Internal error: Cannot load information contained in ...\MakeStripCode.dat
Internal error: Cannot load information contained in ...\CodeSnippets.dat
Afterwards, my stored passwords and configuration was gone too.
The err files just contain some NUL characters: CodeSnippets.err (34 Bytes)
This has now happened several times.
How can these files become corrupt? Does TOAD keep writing to them even though nothing changes?