Your toshiba is equiped with a Pentium 4 CPU. Vista needs more ressources form the entire system and this include from CPU. 3D effects make operate the CPU at higher clocks so this produces more heat.
Maybe you should make a BIOS upgrade. Go on the Toshiba support to download the latest BIOS version for your system. But be sure of what you're doing, a BIOS upgrade is risky.
If you're still under warranty. call Toshiba's tech support.
Until the problem isn't resolved, I would keep my battery out of my laptop to avoid other problems ...
I have instaled Windows Vista Home Basic on an old laptop (Toshiba Tecra A1). The OS worked ok, a little bit slow but that is becuase of the low ram (521 MB).
But ever since then my battery and computer has been heating up very rapidly. And today it was the boilling point - the battery was so hot that it heated up all the plastic arround it including the one the one of the laptop itself. When running Vista the fans appears to run all the time at max speed.
Is this a sign of laptop overheating? Shoudl I try to use my laptop with my batter again while running Vista?
I can run XP Pro with no problem or sign of overheating.