The questions sound like they came out of a A+ exam.
You did not provide enough information to accurately troubleshoot your issues. The following solutions are my first assumptions based on what you've typed.
1. Clean the printer. Usually caused by dirty drum, toner cartridge, rollers. Could also be caused by faulty drum. More details to resolve better
2. Check printer for paper, check tray settings in printer defaults under printer and fax settings, if it is a special function in word such as a mailout, check printer tray settings under mailout. Also check to ensure proper paper size is specified in word.
3. When booting computer, press F8 BEFORE it gets to the Windows XP splash screen, then select "Safe mode" or "Enable VGA mode", log into windows and check your display settings for you graphics adapter. This can be found in the control panel. Try setting it to a lower resolution. Check to make sure you have the proper VGA drivers installed.
4. Floopy cable is most likely connected wrong, Open chasis and flip connector that connects to back of floppy disk drive.
5. Printers printing jibberish is usually caused by incorrect printer drivers being installed. Download printer drivers from manufacturer's website, uninstall old drivers and reinstall new drivers.
6. Lots of reasons for bad DVD burning. Uninstall/reinstall buring software. you can download a free dvd recording software from http://infrarecorder.org/
. If that works, perhaps your current DVD Burning software is not compatible with Vista. May also be faulty media or drive.
7. Windows XP Installer probably doesn't have the drivers built in for your specific SATA controller. Determine the SATA chipset by looking at the card (if it is a card) or looking on the motherboard to determine the motherboard brand and model. go the the motherboards site to download newer drivers, copy to CD and during Windows XP CD boot, press F6 when prompted to specify SATA drivers from the CD. You will need to extract the drivers from a compressed state (if applicable) before burning to the CD
Failure to detect a drive can also be caused by faulty hard drive.
8. If the comptuer just reboots without warning, probable cause is bad capictors on motherboard. Open chasis and look at the cylinder towers on the motherboard. Check for tops that are beveled or seeping a thick substance. If you see beveled capictors or electrolyte coming out, the caps are bad. Unless you are an electrician, you will need to replace the board to resolve this issue.
9. Check for power on speakers, ensure speakers are plugged into proper jack on sound card, in control panel, check to ensure volume is turned up loud enough. Check the device manager to ensure sound card drivers are properly installed and there are no issues with the device.
10. Not enough info to diagnose, change your subent to 255.0.0.0 or change the IP of you computer to 188.8.131.52.