The issue where Logbook Pro doesn't start after updating to 1.9.8.5 is a minor one with Windows. Microsoft put out a patch via Windows Update for the MSI 3.1 Installer which I recommend everyone get from Windows Update, for that matter, I suggest all Windows Updates.
After updating to 1.9.8.5 and Logbook Pro doesn't launch, a REPAIR (which is just a reinstall of itself) usually corrects the issue. It is important for anyone using any data storage application on a computer to be diligent about backups. Whether after every use, weekly, or monthly, it is recommended to backup frequently. A lightning strike, power surge, power outage, virus, you name it, can cause problems with your computer, and although extremely rare, cause data corruption in programs that store data, such as Logbook Pro. Logbook Pro has a backup utility (Options...Backup) to help you in many ways: 1) Schedule frequency of backups, 2) Allow backups to be tagged with the Date of the backup so you can keep a nice archive.
I can only help you with detailed information. Typically cases such as this posting here does not help you or others, we need your data to see what's going on. If after checking the Logbook Pro FAQ forum such as for installation/update related issues, send your Logbook Pro data file (.LBK) zip compressed (suggest Winzip from
www.winzip.com), your recent backup file (.BAK) and if you find a .OLD file in the C:\Program Files\Logbook Pro folder, send that as well. Any time Logbook Pro does an update, it also does it's own archive, which is stored to a .OLD file as yet another layer of protection from anything that may go wrong, which again is extremely rare.
Our number one goal is NO DATA LOSS, EVER!
Hopefully this post will help you get streamlined support / rapid answers, as well as provide methods to ensure Logbook Pro users are diligent about backing up their data. Lastly, keep a backup on a floppy (most backups will fit on a floppy) at your relatives house, safe-deposit box, etc. We heard of laptops being stolen, houses burning down, you name it, prepare for the worst!