Hi. I have found that this version of frostwire...4.18.3, (on my dell inspiron 17 inch 2.5 mhz dual intel processor...320 gig HD at 7200 rpm w/wireless cable hookup), is by far the most stable and quickest program to date. I have to add that the much maligned Microsoft O.S. has much to do with it. Under 64 bit vista it was best till then and now at 64 bit Windows 7...its great. The only other thing I should add is that my AVG 8.5.421 Anti-Virus free along with this makes for a seamless setup .