Give LW some time to settle down. It needs time to load the incomplete & shared files whilst also attempting to connect with each one individually. Depending on how many files there are, this might take 5, 10, 15 25 mins. Let it settle before jumping in & searching.
Don't use the Resume/Find Sources function on too many (if any) files. Searching your topic is much more effective & healthier for both LW, your comp & the network.
Some hints: A well set-up LW can start to automatically continue its dwnlding after it's settled down perhaps 2 out of 3 times you open LW.
Optimising LW & Maximising Uplds & Dwnlds A (1st post only) & also
Part B which is even better & last & least are
search & dwnld hints. The latter one I've been thinking about re-writing for some time. That's just for playing it safe. eg- I show all speeds & qualities.