sound crackin, gamepad and mousey conked

hi all,

i had been facing with some problems lately.
PRoblem 1) my mouse will go died halfway thru playing counterstrike. I have to plug and unplug the mouse b4 it revives again.

problem 2) i've tried using game pad and steering wheel on the USB connection but they both will conk halfway thru playin games. the status shows undetected.

problem 3) there's crackin sound on and off while playin mp3 and playin counter strike.....

hmm...do u think it is the mobo prob, O.S problem or something else?

Thanks

Chin
tB 1.4
MSI kt266...6380
Asus V7700
creative soundblaster live
altec lansing ac54
Win 98.