Donny,
I'm afraid you are very right about repair-jobs. It is hard to believe those guys could not arrange a PC just to verfy/check the replacement. Almost every house 'owns' 2 or 3 computers.....

I learned the lesson : NEVER trust those guys but check while you are in the shop !!

Sometimes they forget to reconnect all devices as HDD's, FDD's, control-panels or sliders during re-assembly.