Sorry wellis. I don't know how to solve your problem with the stand alone other than, as you suggest, returning it and getting a CD burner for your computer. You might post the exact make and model of your recorder, since I assume that if there is any trick to get it to eliminate the gaps, such a trick would be specific to the particular make and/or model.
If you can return it and get a burner for your computer, I highly recommend doing so. A burner for your computer is much cheaper and more flexible. It also uses cheaper media, since you don't have to buy the so-called 'audio' CD-Rs.
The one circumstance where a stereo component CD recorder might have an advantage is if you plan to do a lot of dubbing of analog sources to CD. You can do the same with your computer, but you will need a high quality sound card to do the analog-to-digital conversion, and it might be inconvenient stringing cables from your stereo's analog sources to your computer.