I did enable the mIRC beeps for the specific events i needed to hear beeps for but i also get beeps for /me, which happen alot more regulary.
So now i do have no mIRC sounds and just use the invision sounds, but the private message sound is driving me nuts, especially with people who seem to type each word of their sentence on a new line.
Though this is my only problem with Invision and it is a very nice script, so i will have to learn to do without some of the sounds i need.
Thanks for your help, i do appreciate it, even if the problem wasn't solved