Works on my Swath. So, I wonder if you understand what 'ProbeDestroyed' means(?) ....it means your probe hit a fig'd sector and was destroyed by the enemy fighter.
In case you're not aware:
ProbeSelfdestructs - means it reached it's destination and blowed itself up, real good.
ProbeEnteredSector - a probe entered the sector you're currently in, likely passes through --beit enemy or friendly
YouDestroyedProbe - iirc, means one of your fighters destroyed an enemy probe
..and of course the last bit of advice I can think of is: make sure your volume is up (!muted)
