need help to install window vista

I have 3 computers in my room 2 desktops (home build)*and the other is old ibm thinkpad the desktops are almost the samething they both have pentium d's and both work fine the other computer is one of the mini computers anyways im try to install window vista on the small one and everything good great but when it restarts (or reboots) it does the same thing other again it just keeps on repeating i don't know what to do help would be most great...

 

Did you try the compatibility check on microsoft site with each computer first, to see if visa would work on any?

http://www.microsoft.com/windows/products/windowsvista/buyorupgrade/upgradeadvisor.mspx

 

umm i hav one computer thats about to die from activation and the ibm thinkpad has window xp the one thats about to die from activation is not the prob the small computer is and now it just restart and resarts over and over again its worse than ever i really need help and I try using another hard drive same thing happened sigh but i can get into the bios ok tho i dont no whats going on but everytime i try to do something its make the computer wosre HELPPP!!!!!!!

 

i got it install and now my internet is mess up now holy crap! thanks everyone who has good like stuff with internet would be very great and thanks for everone one try to help me thanks very much and i need to restart the bios! thanks every one!