Hi all, With the continuing reports of i5 and i7 based MBP's freezing up on people, I'm curious as to whether the 13" is also having that problem? I don't expect it, but I might as well ask. Some people say the 15/17" freezing is caused by the Nvidia 330m graphics chip, but I've been reading complaints from owners of i7-based Sony and Lenovo laptops who say theirs are freezing up as well. For instance the Lenovo y550p (1.6 GHz i7 and Nvidia 240m). So if the cause is the CPU, the 13" should be fine. And of course the 13" uses the Nvidia 320m chip, which is substantially different from the possibly troublesome 330m. But I thought I would ask about freezing anyway, just to be sure. Thanks.