IC-705 software bug?

Until this evening my IC-705 has been superb. It has firmware 1.12 and needs upgrading to the latest version. 

This evening it went on DV and seemed to freeze. I have no idea what I did. I recently bought a copy of the "Radio Today Guide to the IC-705" which went through how to do a reset if the rig "froze". In the end I did a full hardware reset which seems to have done the trick. Luckily, nothing of mine was yet stored in memories.

I have ordered a micro SD card and hope to upgrade the firmware as soon as I can. I hope this fixes the software bug. I think the latest firmware also adds some new features too.

As a professional RF engineer, I was used to software bugs especially with early releases. Often later releases fixed these. Often bug cures were hidden alongside new features. Most punters did not realise that these releases were primarily to fix the bugs!