Well i guess by now everyone knows about this service maintenance that you do to clear cache. But i wonder what else does it do.. I press the code at the memory under settings system blade and prompt yes only once and that was long time ago. Now when im playing games i found that my systerm blade is laggy... do you think its because of to many game cache and by performing the system maintenance will fixed it. Its not a problem, but sometimes it will hang. Rarely happen but when it does ...