Hard drive problem

hello to all ....im new to this support forum...well this is my situation i have a toshiba laptop satallite m35x-s114....celeron m...windows xp ...my laptop was working perfectly fine with its 60 gb ide hard drive..i found an 80 gb ide hard drive with the apple logo at the bottom and assumed since both are ide it wouldnt matter..so i installed the 80 gb hard drive and didnt work then i go to install my 60 gb hard drive back and the bios dosent read it ......what went wrong????
im really stumped on this one......please help..

 

I think you need to recheck that your original hard drive is correctly seated then restart the laptop and enter the BIOS settings (may be F2 for a Tosh, can't remember), check that the BIOS is detecting the drive correctly and that it is set to be the default boot device. Save settings, exit the BIOS page and reboot if it doesn't do it automatically.

If that doesn't do it, try to reset the BIOS to default settings.

The Apple firmware on the replacement drive may cause the BIOS some problems, I've run them in Windows laptops before but don't remember the checks/modification sequence I used.