A Multitude Of Problems, Including Freezing

every time i run limewire, after waiting through the excessively slow load times, about halfway through the crawling downloads, i get constant messages from my computer to insert various disks i have used before, like when one is ejected without trashing the icon. after clicking through all the cancels, and resuming downloading, the app (and consequently, my computer) freezes, and the cursor turns into a little grey gridded box. This has happened every time without fail, and im getting quickly exasperated. im very angry, after spending 22.50 on limewirePRO, that i get the same problems i got every time while running basic.