Are you using triple boot? If not, use NTFS, not FAT32 for your WinXP.

Check that the CPU, RAM, and Video card is connected correctly and securely. Did you connect the speaker pins to the motherboard?

I'm not too sure about that. By rights, your optical mouse laser should not be on immediately when you switch on the PC. Thus, if your PSU is blown, I'm afraid that your motherboard might be gone too...

When I power the computer on, everything starts to work but nothing is displayed on the screen yet when it just shuts down.

Have you tried swapping the graphic card? How do you know that...

Clear the CMOS, and load optimized default. Consult your motherboard manual for details.

Your PSU (Power Supply Unit) could be blown. Change that. Next on the list would be a dead mobo, but that doesn't make the fan dead. So, PSU is the most suspicious cause.

Did you write anything on the old partition? If you did, the normal data recovery software will not work.

Try R-Studio which is available at http://www.r-tt.com/

Hmm, when I use VLC Media Player to play video or mp3 files, the video play at the correct speed, but the sound is distorted. Same for mp3. I disabled the onboard sound card and all video played at...

All of sudden, this morning, all my video and audio (including MP3) are playing too fast!

I'm using Windows Media Player. I reinstalled all the codecs but still the same (Using K-lite Codec). Even...