Receivers and Audio Components

So I had a Panasonic SC-DK3 home system and my moms ex-bf blew the amp. So could I hook the subwoofers to the computer? The power supply is 250W MAX, but the subs are only 100W / piece. (200 all together)Would the subwoofers blow or not?

I just got a RCA 2390 receiver at Wal-Mart, and it works great. I've hooked up my PlayStation 2 to it for video games and DVDs with an optical cable. I know PS2 games are only ProLogic II, but DVDs are Dolby Digital. When I turn on the PS2 after turning on the receiver, it switches to Digital for a second and then back to ProLogic II, even after the DVD starts playing (I made sure to change the soundtrack to 5.1). Any ideas on how to play DVDs in Digital on a PS2 with this receiver? Thanks.

I recently purchased a Pioneer SX-315 Home theater system. I cannot get teh subwoofer and center speaker to work.
I tested teh speaker themselves on other ports and they work fine.
I made sure teh volume was turned up on all teh speakers.
I tried every setting on the reciever with no luck.
I tried going directly to the reciever from teh cable box, the dvd and teh vcr all with the same results.
Any help would be greatly appreciated.