You'll "need to" delete the LW preferences folder whilst LW is closed!!! You'll find it here: /Users/your_username/Library/Preferences/LimeWire
After that LW's behaviour should return to normal. It seems that with the 4.10 adjusted preferences, the earlier version LW's behave in a similar fashion in many ways including it's natural self-searching technique after you open LW (as in when it's trying to self-connect to each incomplete one by one.)