my intellimouse explorer recently has started powering itself off when I'm using it.

if I play with the cord a bit it'll power back on. I'm suspecting that it's loose inside and I wanna open it but I see no screws, anyone know how I can open it?

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Duron 750@866 (133X6.5)
Abit KT7-A
Leadtek GF2 Pro 235/470
384 Meg PC-133 Cas 3
Quantum 6.4g HDD :*(
16X Pioneer Slot DVD
8X4 Panasonic CD-R