Drivers can be an issue, I assumed 7 would install all drivers for my laptop but it didn't. I almost had blue screen everyday until I installed all updated drivers for 7. No more blue screen after updating all drivers and I really think 7 is the best version of Windows.
I like HF-2 as much as RS1 honestly, I think it is even more musical than RS1 although HF-2 doesn't extend as high as RS1, I've owned MS2i for two times and I've demoed MS-Pro for an extend period, I think they're cold sounding compared to Grados.
What is memory leak? I currently have 5 tabs open but there are more the one processes of Chrome running, is that what memory leak you guys talking about?