DPS key won't stop spamming

[shadowlord633]

posted this in newb area, thought i should post here also cause my problem is with SWTOR. I 4 box on 4 different computers and when i spam my dps keys they continue to spam for like 10 attacks after the fight is over. The other problem is i can't heal until all the spam stops in the middle of battle either. Won't even let me jump to stop casting. It doesn't spam after combat on my main character that my guys are assisting, only the other 3 guys assisting. Any ideas to stop the assisting guys from spam run on? Using Isboxer to box.