Logos 4 is reasonable on my desktop - sluggish with delays but overall pretty good (Vista 32bit, Quad core with 4Gb of RAM)
However, on my netbook it's proving to just be a totally frustrating experience. Twice now Logos 4 has spent hours (over 24 hours the first time about 15 this time) creating the index only to delete it and start again. I'm about ready to give up and go back to version 3 because whilst indexing is going on Logos 4 is pretty much unusable.(I've got an Acer Aspire One with 2Gb RAM and an Atom N280 1.66GHz processor)
I'm very disappointed because I do a lot of my work on the netbook. Logos 3 runs without problems but Logos 4 on my netbook is turning out to be a real dud.
Maybe will try again in a few weeks or if someone can give any suggestions on the indexing problem but for now I've got other things to do.