I bought my Pioneer 810HS not too long after they were introduced (2002?). It's an original box and has worked flawlessly. Recently, it seems to be freezing up twice a week and requires a restart (pull the power plug and power up). It'll work fine for a few more days, then it needs to be restarted again. It's hooked up to a Comcast Motorola cable box (same one we've used for years). The software version is 9.3.2a-0102-275. Any ideas regarding what the problem might be?