Webcam issue on msn

hi, i jus installed msn plus later i realised dat ma webcam doesnt wrk nd only i can see da icon. i uninstalled msn plus nd used ma da earlier version i had already. but it still didnt wrk. nd im usin ma laptop so da web cam is built in already. i repaired by msn but it still doesnt work, only wrks wen i clik on sum1 elses webcam icon nd den i clik mines dats it, dats da only way it wrks.