gudda96, audio cd in your cd drive is usually played via a thin twin screened cable from your cd drive to your sound card. perhaps this was disconnected at the shop. Another thing to check is to go to Control Panel - Multimedia - CD Music, and check that the correct drive is selected. As for the short playing time of your e-mail attachments, perhaps the attachment size has been limited by your isp. What is your default player for the attachment file type? If it is Windows Media Player, perhaps if you open it you will be able to see if it is having a problem with the file.
It still seems that we do not know if you have a sound card in a pci slot or if your motherboard has a built in sound chip. Computers with sound chips on the motherboard have there audio connectors in a vertical alignment. Where as Sound cards are horizontal.
If you suspect you have a sound card, have you looked into the machine and seen if the sound card is firmly seated, pushed in. Make sure the computer is switched off.
Also have you checked in device manager to see if you have any yellow exclamation marks there.
Hi gudda96. If your computer is playing the normal Windows sounds, then in my experience it is most likely that in fitting the new graphics card, the analogue cd cable has been disconnected. If you are not confident to check this yourself, go back to the shop and ask them to check it.