|CompUSA is still in business?|
A repair reinstall should leave your data files intact although it's always a good idea to back them up on cd-r or other removable media.
I've always been leery of adapers that allow you to use a parallel printer in a USB port. For awhile some printers has both USB and parallel ports. The driver downloads were different depending on which you were using.
If yours was previously working that way it's possible a non-standard driver installation was needed.
If you plan on keeping that printer it may be best to look for a PCI parallel add-on card.
Ubuntu Cheeta, Ubuntu !