96 jetta problem????

Iv'e owned my 96 gls for about a year now and it has 156000 miles , great car , but it starting to bog out while i'm accelerating. when i take it out of gear and put it back the problem seems to go away . i'm getting concerned because it is happening more and more. i'm not sure what the problem is and i was hopeing maybe someone that reads this might know more than me about this. i'd rather not just go out and buy a clutch if that isn't going to fix it. someone help please!!!!!!!!!!!!!

Are you dropping the RPM's too much before you accellerate? Check your air filter and other intake components and sensors.