engine cutting out

I just bought my first SVX. It's a '92 and I LOVE it. The only problem I have encountered thusfar is this. If you drive the car, then you stop for a while, when you start it back up and drive it the engine will cut out sometimes. It feels as though you have taken your foot off the gas. Sometimes it just kind of stalls for a second, but a couple of times it has actually shut off, and had to be cranked up again. After it does this once or twice, it's just fine. I drove the car over 500 miles the first day with no problems at all. Any ideas?