Lost ability to copy and paste or drag HELP

[theresa b thoma]

Randomly have lost the ability to copy and paste. Also the drag feature to drag something into another folder.
Operating 10.8.5 on a Mac Book Pro.

Also when rebooting, it loops around forever. Prior to this happening, the machine was running fine.

 

[jahall05]

Try this: http://support.apple.com/kb/HT1509?viewlocale=en_US&locale=en_US

Sounds like it could be a hardware problem (hard drive) or OS X needs a clean install.

Let us know what the hardware tests comes up with first.