Hi Fred,
The same happened to me, computer crashed and ended up with a corrupt MyLog file and lost all MyLog records in the RB software.
(Just last night I had a blue screen and restart, and lost the last 3 days MyLog)
However, in my case the data was still there. It appears that the RB software checks the integrity of the MyLog file on start up, and if the file is corrupt, it doesn't load the data.
I played around with a few sqlite programs, copying/importing/exporting tables from one file to another, and I finally recovered maybe 50% of the MyLog. I couldn't find a way to repair the damaged table.
I would suggest firstly making a backup of your 30mb MyLog file, then try exporting all data into excel format with the RB export tool that was developed by one of our forum members. Then import the same data into a new MyLog file and see if that corrects it.
Does anyone else have any other ideas?
I hope that AirNav will be looking at the backup procedure for the next RB release, I've lost a lot of data because of this!
Andrew