Hi, David!
I am not using Beta Updates or whatever they are - I haven't heard of them.
I looked in forums online on the subject of DSO Exploit, and as you imply, it is evidently a fase indication of something being wrong. If I deleted something I shouldn't have deleted, I will try to undelete it if it is possible.
Although it is believed to be harmless, maybe it isn't fully known what it is and if it was, maybe it would be found that it more harmful than thought. For example, I just downloaded Xoftspy and ran that, and it found 5 viruses that my other antivirus programs didn't reveal. I can't remove what it found, as I can't afford to register with them.
Thanks for your help.
Debby