More hardware problems? Or just a temporary issue?

As you may have known, its been a month since I've gotten my refurbished PS3. Today I guess I was playing a buggy yet good game called Rainbow Six Vegas 2, and it lagged like crap offline. Then it booted me out back to the main menu. Wait! There's more! I decided to pop in NBA and then I hear technical sound issues, I keep it during the shoot around and the background music is making *bleep bleep* and scratchy sounds from here to there. Scared, I then decided to restart the PS3, I haven't played that long after the reboot, maybe 5 minutes to see what the heck was going on, but nothing happened. I'm afraid its a sign of some sort. Any ideas?

As you may have known, its been a month since I've gotten my refurbished PS3. Today I guess I was playing a buggy yet good game called Rainbow Six Vegas 2, and it lagged like crap offline. Then it booted me out back to the main menu. Wait! There's more! I decided to pop in NBA and then I hear technical sound issues, I keep it during the shoot around and the background music is making *bleep bleep* and scratchy sounds from here to there. Scared, I then decided to restart the PS3, I haven't played that long after the reboot, maybe 5 minutes to see what the heck was going on, but nothing happened. I'm afraid its a sign of some sort. Any ideas?

PSNMatt41