|A bad video card would make the laptop constantly reboot, yes.. however, there could be a few ways to tackle this. |
Do this first, turn the laptop over and take out each RAM module, one at a time and see if it works each time, if it doesn't, then move onto my second suggestion.
Could be a boot virus, go into Safe Mode (F8) at startup and try a system restore.
If the module and restore ideas don't work, try booting into safe mode from the boot screen (F8), and see if you can start up in 640x800 mode.. if you can do that then the graphics are fried.. and from that point, I hate to say it, but that laptop is a paper weight unless you want to use it in safe mode.