Here are local places that can preform repairs and replace components if hardware fails in your computer. Be sure to check that your computer is under warranty and that it's covered prior to sending anything in. Repair shops vary in their policy, but most have a diagnose, repair and shipping charge if your not picking it up directly. Be sure to send in a written format what your encountering problems with the machine and if possible how to reproduce the error or problem to speed up the process of repair.
Milwaukee PC - a computer repair shop right across from the post office off at St. Paul Avenue
PC - Doctor - another computer repair shop that can you send your PC computer for repairs.
Apple Store Mayfair Mall
Apple Store Bayshore Mall
Apple store - For Macs you can have your computer checked out at the there through an appointment or if you would like to know more about your specific computer.