Try using some different sites fluff. I use refreshthis.com or urlreload.com. Give those two a try.
In addition to what Arctic has already provided, try using a different web browser ( Chrome / Firefox ) since those seem like the best ones aside from I.E ( Unless you're already using either or ).
Another thing you could try is, instead of working on the character in one whole set, work on them tier by tier, saving it every now and then so you won't have to worry about starting all over again. c: